Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

Algebra -> Algebra -> Linear-equations -> Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors! Log On

Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

Algebra: Linear Equations, Graphs, Slope

Solvers

Lessons

Problems, free tutors

Quiz

In Depth

Tutors Answer Your Questions about Linear-equations (FREE)

Question 78664: Write the equations in slope intercept form.
y – 4 = -2(x – 5)
y + 2 = 3(x + 12)
y – 7 = ¾(x – 5)
Click here to see answer by checkley75(3666)

Question 78711: 7(3x + 4) = 8(2x+ 5) + 13

Click here to see answer by checkley75(3666)

Question 78716: Science and medicine. Martina leaves home at 9 A.M., bicycling at a rate of
24 mi/h. Two hours later, John leaves, driving at the rate of 48 mi/h. At what time will John catch up with Martina

Click here to see answer by ankor@dixie-net.com(6693)

Question 78722: 26. Business and finance. Ms. Jordan has been given a loan of $2500 for 1 year. If the interest charged is $275, what is the interest rate on the loan?

Click here to see answer by SmurfDude(4)

Question 78720: Science and medicine. A chemist has 300 milliliters (mL) of solution that is 18% acid. How many milliliters of acid are in the solution?

Click here to see answer by SmurfDude(4)

Question 78734: Write the equation of the line L satisfying the given geometric conditions.
L has y-intercept (0, -3) and is parallel to the line with equation y = 2/3x + 1.
Click here to see answer by Septimus314(7)

Question 77797: Please help me find the slope and y intercept of -5x + 7y = 2
Thank you
Click here to see answer by Septimus314(7)

Question 78757: I am working on graphing the inequalities but I need your help.
The rules are to graph the inequalities. Show all calculations. Label the boundary line and shade the solution area.
The question is y The other question is 2x+y≧4 and I have to describe the process you used to graph one of the inequalities.
I need your help, so please help me as soon as possible because it is due tomorrow. Thank you.
Click here to see answer by stanbon(26275)

Question 78713: 3x - 5(3x- 7) = 2(x + 9) + 45
Click here to see answer by b_howie(8)

Question 78719: 20. Business and finance. Paul invested $5000 in a time deposit. What interest will he earn for 1 year if the interest rate is 6.5%?
Solve each of the following applications.
Click here to see answer by tutor_paul(424)

Question 78712: 2(x - 3) - 3(x + 5)= 3(x - 2)- 7
Click here to see answer by checkley75(3666)

Question 78714: 54. Science and medicine. A bicyclist rode into the country for 5 h. In returning, her
speed was 5 mi/h faster and the trip took 4 h. What was her speed each way?

Click here to see answer by ankor@dixie-net.com(6693)

Question 78779This question is from textbook Pre-Algebra
: Use a graph to solve each system of equations.
15. y=x+5
y=2x+6
And then it gives me a graph to graph it!!
HEPL PLEASE I HAVE A TEST TOMORROW AND I KEEP ON GETTING F AND I CAN"T FAIL MATH CUZ I"M GOING TO GET IN BIG TROOUBLE!!! HELP PLEASE!!This question is from textbook Pre-Algebra

Click here to see answer by mathdoc314(58)

Question 78782: . A bus company in a small town has an average number of riders of 800 per day. The bus company charges $2.25 for a ride. They conducted a survey of their customers and found that they will lose approximately 40 customers per day for each $.25 increase in fare.
a) Let the number of riders be a function of the fare charged. Graph the function, identify the graph of the function (line, parabola, hyperbola, or exponential), and find the slope of the graph.
Graph:

Graph Type:
What is the slope of the graph?
b) The bus company has determined that even if they set the price very low, there is a maximum number of riders permitted each day. If the price is $0 (free), how many riders are permitted each day?

c) If the bus company sets the price too high, no one will be willing to ride the bus. Beginning at what ticket price will no one be willing to ride the bus?

Click here to see answer by ankor@dixie-net.com(6693)

Question 78796: Hello,I need some help with some slope-intercept problems,and thanks to whoever helps me,Write an equation in slope-intercept form of a line with the following characteristics:parallel to the graph of:x+y=6 and passes through (1,-4).Next one is,Write an equation in slope-intercept form of a line with the following characteristics:perpendicular to the graph of:2x-3y=12 and passes through (4,3).The next one is,Write an equation in the slope-intercept form of a line with the following characteristics:Perpendicular to the graph of :y=3/2 x-3 with ay- intercept of 5.And the last one is,Write an equation in the slope-intercept form of a line with the following characteristics:parallel to the graph of:-4x+3y=12 and passes through the origin.Thanks to whoever can help me.
Click here to see answer by mathdoc314(58)

Question 78789: a company makes and sells flags wtih various seasonal themes. it costs $12 to manufacture each flag , and there is a set-up cost of $200 for a new design. the company sells the flags to home improvement stores for $20 per flag.

write an equation for the production cost in dollars in terms of the number of flags produces. be sure to describe what you variables represent.

Click here to see answer by mathdoc314(58)

Question 78718: 64. A common mistake when solving equations is the following:
The equation: 2(x- 2) = x+ 3
First step in solving: 2x- 2= x + 3
Write a clear explanation of what error has been made. What could be done to
avoid this error?

Click here to see answer by stanbon(26275)

Question 78717: Business and finance. There are 850 Douglas fir and ponderosa pine trees in a
section of forest bought by Sawz Logging Co. The company paid an average of
$300 for each Douglas fir and $225 for each ponderosa pine. If the company paid
$217,500 for the trees, how many of each kind did the company buy?

Click here to see answer by ankor@dixie-net.com(6693)

Question 78897: Graph f(x)=-3x-2
Click here to see answer by rapaljer(3620)

Question 78822: A survey of 400 people found that 66 were left-handed. What percent
of those surveyed were left-handed?

Click here to see answer by 303795(562)

Question 78826: Science and medicine. A chemist has 300 milliliters (mL) of solution that is 18% acid. How many milliliters of acid are in the solution?

Click here to see answer by 303795(562)

Question 78819: A survey of 400 people found that 66 were left-handed. What percent
of those surveyed were left-handed?

Click here to see answer by 303795(562)

Question 78818: Ms. Jordan has been given a loan of $2500 for 1 year. If
the interest charged is $275, what is the interest rate on the loan?

Click here to see answer by 303795(562)

Question 78828This question is from textbook
: Rectangular notepad: The length of a rectangular notepad is 2 cm longer than twice the width. If the perimeter is 34 cm, then what are the length and width?This question is from textbook

Click here to see answer by tutor_paul(424)

Question 78938This question is from textbook Algebra I: An Integrated Approach
: How do I create a linear model?This question is from textbook Algebra I: An Integrated Approach

Click here to see answer by mathdoc314(58)

Question 78951: Can someone please help me with this? I have started back to school after a 30 year absence and I'm lost. I have no prior knowledge of algebra and now I'm "required" take the class. Help!!!!! I believe this stuff is supposed to be answered with the x,y, etc. stuff. How I don't know!! Here is the Problem:
It is approximately 480 miles from Los Angeles, California, to San Francisco, California. Allowing for various traffic conditions, a driver can average approximately 60 miles per hour.
a) How far have you traveled after 3 hours?

Click here to see answer by stanbon(26275)

Question 78956: Problem:
Find the slope of the line through the given points

(2,4), (6,3)
Click here to see answer by jim_thompson5910(13794)

Question 78980: Business and finance- The cost of producing a number of items x is given by C=mx+b, in which b is the fixed cost and m is the variable cost (the cost of producing one more item)
(a) If the fixed cost is $40 and the variable cost is $10, write the cost equation.
(b) Graph the cost equation
(c) The revenue generated from the sale of x items is given by R=50x. Graph the revenue equation on the same set of axes as the cost equation.
(d) How many items must be produced for the revenue to equal the cost (the break-even point)?
Click here to see answer by renevencer22(21)

Question 78977: graph equation y=3/4x+2
Click here to see answer by ankor@dixie-net.com(6693)

Question 79129This question is from textbook Beginners algebra

: Find two consecutive odd integers such 5 times the first integers is 12 more than 3 times the secondThis question is from textbook Beginners algebra

Click here to see answer by checkley75(3666)

Question 79128: One number is 6 more than another. If the sum of the smaller number and 3 times the larger number is 34, find the two numbers
Click here to see answer by checkley75(3666)

Question 79162: Can someone help me with this problem? I'm stuck!!! I'm in a class that is over my head. Help!!!!!!!!!!!!!!!!!!!!
For the function y = x2 - 6x + 8, perform the following tasks:
a) Put the function in the form y = a(x - h)2 + k.
Answer:
Show work in this space.

b) What is the equation for the line of symmetry for the graph of this function?
Answer:

c) Graph the function using the equation in part a. Explain why it is not necessary to plot points to graph when using y = a (x - h) 2 + k.
Show graph here.

Explanation of graphing.

d) In your own words, describe how this graph compares to the graph of y = x2?
Answer:

Click here to see answer by Earlsdon(4900)

Question 79214: Can anyone give me any insight into this? I'm stuck! Any help would be deepley appreciated. Thanks.

When using the quadratic formula to solve a quadratic equation ax2 + bx + c = 0, the discriminant is b2 - 4ac. This discriminant can be positive, zero, or negative. (When the discriminant is negative, then we have the square root of a negative number. This is called an imaginary number, sqrt(-1) = i. )
Explain what the value of the discriminant means to the graph of y = ax2 + bx + c. Hint: Chose values of a, b and c to create a particular discriminant. Then, graph the corresponding equation
Click here to see answer by scott8148(3382)

Question 79187: Choose the slope-intercept form of the equation of the line that passes through (-2,4) and is perpendicular to the graph of 2x+y=-20.
So far, I have tried this:
2x+y=-20
y=-20-2x
And I'm not sure where to go from there.
Thanks, Susanna Rivera
Click here to see answer by scott8148(3382)

Question 79242: Find the value of m in the equation y=mx+3, such that (-2,5) is on the graph.
Click here to see answer by tutorcecilia(2042)

Question 79242: Find the value of m in the equation y=mx+3, such that (-2,5) is on the graph.
Click here to see answer by Edwin McCravy(2922)

Question 79240: slope of the line that joins (-6,1)(4,1)
Click here to see answer by sprolden(40)

Question 79236: what is the slope of (-4 , 3) and (-6, 7)
Click here to see answer by sprolden(40)

Question 79236: what is the slope of (-4 , 3) and (-6, 7)
Click here to see answer by tutorcecilia(2042)

Question 78975: graph equation y=3/4x+2
Click here to see answer by sprolden(40)

Question 79273: what is the slope-intercept form of the line passing through the point (6,-9) and parallel to the line 5x-7y=-1
Click here to see answer by rmromero(383)

Question 79316This question is from textbook
: Graph each compound inequality. Due tonight.
4x - 3y < 3 or
2x + y > 2
(Please note that the greater than and less than signs are underlined).This question is from textbook

Click here to see answer by stanbon(26275)

Question 79339: How do I go about finding the slope of of the line through the following pairs of points? (-5, -3) and (-5, 2)
I am guessing that the answer to the second one is -5/2..Am I right? Please explain, Thank You...
Click here to see answer by stanbon(26275)

Question 79371: Find the slope and y-intercept for each line
3x+5y+10=0
Click here to see answer by sprolden(40)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945