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

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Question 204118: The graph of 4y = 5 is
a. A horizontal line c. A line that is neither horizontal nor vertical
b. A vertical line d. Not a line

Click here to see answer by stanbon(75887)

Question 204118: The graph of 4y = 5 is
a. A horizontal line c. A line that is neither horizontal nor vertical
b. A vertical line d. Not a line

Click here to see answer by jojo14344(1513)

Question 203955: Solve by grapghing, indicate whether each system is independent, inconsistent, or dependent. x + y =5
x-y=-1
Click here to see answer by Alan3354(69443)

Question 204128: When graphing a linear inequality, how do you know if the inequality represents the area above the line?
Click here to see answer by Earlsdon(6294)

Question 204151: 5) A tennis club offers two payment options:
Option 1: $42 monthly fee plus $5/hour for court rental
Option 2: No monthly fee but $8.50/hour for court rental.
Let x = hours per month of court rental time.
a) Write a mathematical model representing the total monthly cost, C, in terms of x for the following:
Option 1: C= 42+5x
Option 2: C= 8.50x
b) How many hours would you have to rent the court so the monthly cost of option 1 is less than option 2? Set up an inequality and show your work algebraically using the information in part a.
Answer:
Show your work here:
I try to solve for question a. where it asks me about option one C= and for Option two C=, but i have no idea if its correct. I dont know how to do the question b. Can someone help me and show me how to do this problem. My homework is due sunday at 9:59 California time. PLEASE!!!!!

Click here to see answer by Theo(13342)

Question 204181: How do you solve this equation for y:
2x+3=8
2x+3-3=8-3
2x=5
2x/2=5/2
x=5/2 or 2.5

Click here to see answer by RAY100(1637)

Question 204196: how do you solve something like -5x+1=>11
Click here to see answer by Earlsdon(6294)

Question 204212: how do you solve the equation 5x+4y=12 when you are solving for y?
Click here to see answer by Earlsdon(6294)

Question 204234: 5x + 4y = 12 for y
Click here to see answer by Earlsdon(6294)

Question 204296: if y varies directly as the square of x and y= -27 when x=3, find y when x is 6
Click here to see answer by jim_thompson5910(35256)

Question 204298: if y varies inversely as x and y =25 when x =4, find x when y is 10
Click here to see answer by jim_thompson5910(35256)

Question 204340: If the degree measure of the smallest angle of a triangle is
one-half of the degree measure of the second largest angle
and one-third of the degree measure of the largest angle,
then what is the degree measure of each angle?
I cannot graph this for the life of me...i tried changing the veribage around it still doesn't work for me please assist.
Click here to see answer by stanbon(75887)

Question 204219: Using the Library, web resources, and/or other materials, find a real-life application of a linear function. State the application, give the equation of the linear function, and state what the x and y in the application represent. Choose at least two values of x to input into your function and find the corresponding y for each. State, in words, what each x and y means in terms of your real-life application. Please see the following example. Do not use any version of this example in your own post. You may use other variables besides x and y, such as x and W depicted in the following example. Be sure to reference all sources using APA style.
The average lifespan of American women has been tracked, and the linear model for the data is A = 0.2t + 73, where t = 0 corresponds to 1960. This implies that in 1980, t = 20, women lived an average of 77 years. A = 0.2(20) + 73 = 77. In addition, in 2000, t = 40, women lived an average of 81 years. A = 0.2(40) + 73 = 81.
I would like to use something that would work with the amount of gas that i use miles and price of gas if it works, i just dont know how to put it in and equation. Can someone please help me, and if this wont work for whatever reason please let me know of somthing that i can use and how to work it.

Click here to see answer by feliz1965(151)

Question 204202: The following graph shows Bob�s salary from the year 2000 to the year 2003. He was hired in the year 2000; therefore, x = 0 represents the year 2000.
2000=30,000
2001=32,000
2002=34,000
2003=36,000

a) List the coordinates of two points on the graph in (x, y) form.
(___, __),(___, ___)
b) Find the slope of this line:

c) Find the equation of this line in slope-intercept form.

d) If Bob�s salary trend continued, what would his salary be in the year 2005?

Click here to see answer by feliz1965(151)

Question 204614: what is the vertex of the parabola y=4x^2+8x+3
what is a parabola?
Click here to see answer by Earlsdon(6294)

Question 204613: what is the solution of x^2-4x+4=0

Click here to see answer by Earlsdon(6294)

Question 204612: what is the slope of this equation 2y - 3x + 10=1
please help me figure out slopes, also for future problems. maybe a step by step . thanks you so so much in advanced!
L
Click here to see answer by Earlsdon(6294)

Question 204587: For the 2 points, 3,3 and 5,7 generate the equation for a straight line
using slope, y-intercept procedures. Could you do this problem step by step so I can understand how to work this type of problem out. Thanks

Click here to see answer by Alan3354(69443)

Question 204665: find the value of k such that the graph of 4x=k-3y has a y-intercept of (0, -8)
Click here to see answer by Earlsdon(6294)

Question 204700: In the xy plane find the equation of the straight line passing through the point (3,2) with y-intercept 1
Click here to see answer by stanbon(75887)

Question 204690: A child in an airport is able to cover meters in minutes running at a steady speed down a moving sidewalk in the direction of the sidewalk's motion. Running at the same speed in the direction opposite to the sidewalk's movement, the child is able to cover meters in minutes. What is the child's running speed on a still sidewalk, and what is the speed of the moving sidewalk? pls assist me thank yoyu
Click here to see answer by ankor@dixie-net.com(22740)

Question 204741: Write the standard equation of the circle passing through (2,5) with the center at (-2,-3). Sketh the graph.
Click here to see answer by alicealc(293)

Question 204726: The sum of the solutions to-
x^2-2x-3=0 }}

Click here to see answer by Alan3354(69443)

Question 204909: Solve linear equation using any technique.Name technique.check.
3x/4+6=-12
I would greatly appreciate your time and help.
Click here to see answer by rfer(16322)

Question 204930: X-3y=-6
Click here to see answer by Alan3354(69443)

Question 204970: I need to see how many solutions exist in this linear equation. Then I need to graph the two lines the linear equation makes. 0.2x + 0.4y = 1.7 and 8.3x - 6.3y = -4.3
Click here to see answer by stanbon(75887)

Question 205352: What is the slope of the line x+10+y, also y-x+-6
Are the pair of line parallel?
I believe the slope of the line is undefined for both but i could be wrong and also that they are parallel.
Click here to see answer by Alan3354(69443)

Question 205376: solve by Elimination Using Addition and Subtraction method
2x + 4y = 8
y - 3 = x
Click here to see answer by checkley77(12844)

Question 205337: 3(y+8)-12y = 0
Click here to see answer by checkley77(12844)

Question 205427: The concept of slope arises in many practical applications. When designing and building roads, engineers and surveyors need to be concerned about the grade of the road. The grade, usually expressed as a percent, is one way to describe the steepness of the finished surface of the road. For example, a 5% grade means that the road has a slope (rise over run) of 0.05 = 5/100.
A.If a road has a 5% upward grade over a 1000-foot run how much higher will you be at the end of that run than at the beginning?
B.What is the grade of a road that rises 26 feet over a distance of 500 feet?
Click here to see answer by Earlsdon(6294)

Question 205454: 3x+2y=5.....I am so lost on how to get the answer to place on a graph. I have the formula, just not sure how to place y=mx+b. Please help.
Click here to see answer by ankor@dixie-net.com(22740)

Question 205493: how to solve this: f(x)= x2+x and g(x)=x2-x, question (f.g)(x) =?
Click here to see answer by stanbon(75887)

Question 205495: what is the slope and y-intercept of 3y-x=5
Click here to see answer by nerdybill(7384)

Question 205496: the rule which describes th e relation as shown in the given table
Click here to see answer by rapaljer(4671)

Question 205440: Please show me how to solve 6 = 5(1/4)+c..Thanks
Click here to see answer by checkley77(12844)

Question 205435: write an equation of a line that has the same slope as 2x-5y=12 and the same y-intercept as 4y+24=5x
Click here to see answer by rapaljer(4671)

Question 205511: Help Help Help PLEASE!!!
The Sunshine Bakery sells pies at a fixed price of,p, per pie. The total number of pies demanded daily, D is related to the price, p, by the equation:
D=-10p+200
On the other hand, the daily supply of pies, S, is related to the price p per pie by the equation:
S=15p-50
Determine the equilibrium price of pies, i.e., the price at which the Supply S and Demand D are equal.

I set the problem up as
-10p+200=15p-50
-25p=-250
p=10
I don't know where I should go from here. Will you please help.
Click here to see answer by stanbon(75887)

Question 205525: Which of the following systems of equations has no solution?
(A) 5x + 10y = 20 4x + 8y = 16
(B) 5x + 10y = 20 x + 2y = 4
(C) 5x + 10y = 20 4x + 8y = 20
(D) None of these
Click here to see answer by Edwin McCravy(20055)

Question 205594: The question is: Write the equation of the line in standard form through the point (5,-1) with the slope of 3/4. So far what I have done is substituted the point into the standard form equation and it came out like this: 5a - 1b=c i don't know what see is and what further work i should do to get the answer.
Click here to see answer by stanbon(75887)

Question 205592: Point A (-4,1) is in the standard (x,y) coordinate plane. What must be the coordinates of point B so that the line x=2 is the perpendicular bisector of AB? (with a line above the AB - what does that mean?) The answer is (8,1). How was this answer determined?
This is a sample question from a review of questions that I might have on a placement test to determine my math knowledge. I am going back to college for more eduation after many years away from it.
Thank you!
Click here to see answer by stanbon(75887)

Question 205605: What is f=2g, for g
Click here to see answer by rapaljer(4671)

Question 205653: graph the line x= -5
Click here to see answer by Alan3354(69443)

Question 205669: Help please. I'm not understanding this problem at all.
For a particular item the supply equation is given by S= 2p+5. At a price of $1, 19 units of this product are demanded. If the demand equation is linear and the demand is 11 units at a price of $3, find the demand equation.
Click here to see answer by stanbon(75887)

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, 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11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 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