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

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Question 187635: The distance of a train from a station, d, varies directly with the time, t. If d = 200 miles when t = 4 hours, what is the equation of direct variation?
Click here to see answer by Alan3354(69443)

Question 187646: Write the equation of the line in slope- itercept form given the slope and the coordinate of the y- intercept (exercise 7-18)
7. m=2:(0,3)
9. m=-3;(0,-9)
11. m=3/4;(0,5)
13. m=-2/5;(0,7/8)
Can anybody help me please! thanks
Click here to see answer by Alan3354(69443)

Question 187661: Find an euqation of the line containing the given pair of points (2,1) and (6,3)

Click here to see answer by jim_thompson5910(35256)

Question 187658: Can you please help me with this linear equation?
One number is 15 more than another. The sum of twice the larger and 3 times the smaller is 182. Find the numbers.
thanks

Click here to see answer by user_dude2008(1862)

Question 187662: solve the system of equations by graphing
y=-3x+3
5x+y=5

Click here to see answer by Earlsdon(6294)

Question 187668: find the length of the line segment between (2,-1) and (3,5).
find the midpoint of the line segment between the points (2,-1) and (3,5)
Click here to see answer by Alan3354(69443)

Question 187671: SOLVE THE SYSTEM OF EQUATIONS BY GRAPHING
Y=2X-2
6X-Y=6
Click here to see answer by stanbon(75887)

Question 187670: solve the system of equations by graphing
-3x-y=3
7x+y=7
Click here to see answer by sridhar(2)

Question 187746: can you help me with this equation?
one number is 15 more than another. The sum of twice the larger and 3 times the smaller is 182. Find the numbers.
Thank you
Click here to see answer by checkley77(12844)

Question 187754: Can you help me with this equation?
A rectangle has a perimeter of 38 feet. The length is 1 foot less than 3 times the width. Find the dimensions of the rectangle.
Thank You
Click here to see answer by checkley77(12844)

Question 187854: This is actually a review word problem:
Two angles are complementary. One angle measures 17 degrees more than the other angle. Find the measure of the two angles.
Click here to see answer by nerdybill(7384)

Question 187896: what is the value of y when y=6.2x-17?
Click here to see answer by jojo14344(1513)

Question 187893: write y=14.7(x-20)+130.6 in intercept form. PLEASE RESPOND ASAP!!!!!!!!!!!!!
Click here to see answer by nerdybill(7384)

Question 187892: Write y=14.7(x-20)+130.6 in intercept form.
Click here to see answer by nerdybill(7384)

Question 187886: 40 degrees celsius is equivalent to how many degrees farenheit?
Click here to see answer by jojo14344(1513)

Question 187885: What is x when y=5x-20?
Click here to see answer by jojo14344(1513)

Question 188085: Find an equation of the line containing the given pair of points
(3,2) and (9,5)
Y=
Click here to see answer by checkley77(12844)

Question 188085: Find an equation of the line containing the given pair of points
(3,2) and (9,5)
Y=
Click here to see answer by jojo14344(1513)

Question 187985: The problem reads as follows: y+5=-(x+2)
It asks to graph the problem. Could you please show me how to put this in this in the correct form and graph it? If I can see one done, I think I can do the rest.
Thank you.........Ann
Click here to see answer by jojo14344(1513)

Question 187969: Graph the equation using the slope and y intercept.
20. y=x+5
24. x+y=-3
Click here to see answer by jojo14344(1513)

Question 187987: Use substitution to solve each system of equations.
x=2y
4x+2y=15
Click here to see answer by jojo14344(1513)

Question 188140: how do i convert this linear equation into slope-intercept form?
2x-3y=7

Thank you!!
Click here to see answer by Alan3354(69443)

Question 188196: I need this linear equation solved pleased. 7-4(3x+4)=-9x
Click here to see answer by jim_thompson5910(35256)

Question 188196: I need this linear equation solved pleased. 7-4(3x+4)=-9x
Click here to see answer by Mathtut(3670)

Question 188207: a input and out put table and x being 0,1,2,3,4 and y=-3x+1
Click here to see answer by solver91311(24713)

Question 188221: what is the solution of
2x+Y=-4
6x+3y=-12
i have to put it in y form first then find m and b then graph the solutions
Click here to see answer by jim_thompson5910(35256)

Question 188243: Given the equation of the line y = -6x+3, write the slope of a line that is PARALLEL to it.
Slope of a parallel line m = -6 This is what I came up with is this correct?

Click here to see answer by solver91311(24713)

Question 188226: I have to git the equation in y form then i have to find m and b then graph

3Y=2X+6
Y=2x-6
Click here to see answer by jojo14344(1513)

Question 188219: what is the solutions to these problems if you have to solve it by graphing the solution?
3Y=2x+6
Y=2x-6

Click here to see answer by checkley77(12844)

Question 188279: For the exponential function e^x and logarithmic function log x, graphically show the effect if x is halved.

What is the value of e?
Click here to see answer by Alan3354(69443)

Question 188315: y
Click here to see answer by Alan3354(69443)

Question 188345: I do not know where to start. When do you multiply numbers to the x and y.
my problem is this
2x+y = 5
-6x - 3y = -15 My teacher said that you multiply the 2x and the y by 3 why? and how do you finish after that?
Click here to see answer by Alan3354(69443)

Question 188360: Linear Equations: I need help on how to undersatnd this because i don't get non of this. The tuter thing i just saw didn't help me at all. I'm only 14 years old.

Click here to see answer by jim_thompson5910(35256)

Question 188412: graph the linear equation. (HOW DO YOU SET UP THE PROBLEM?)
7y= x+7
Click here to see answer by solver91311(24713)

Question 188498: Write an equation for line e.
Click here to see answer by Alan3354(69443)

Question 188513: I have been searching sites all afternoon trying to understand this. There is table A with X and y coordinates of (-2,-1), (-1,1) (0,3) (1,5) (2,7). Then there is Table B with (-2,-5), (-1,-3), (0,-1), (1,1) (2,3) you are then asked to find the differences in x and y values?? I guess I just don't understand what they're looking for.
Click here to see answer by solver91311(24713)

Question 188608: For the exponential function e^x and logarithmic function log x, graphically show the effect if x is halved.
Click here to see answer by solver91311(24713)

Question 188681: A straight line passes through the points (5,3) and (7,1)
a. find its slop
b. find equation of this line using point-slop from of the line
c. find x-intercpt and y-intercept of the line.
d. find the equation of a line by slop-intercept from of the line. verify
whether it is sme as one obtained in part (b)
Click here to see answer by Alan3354(69443)

Question 188769: The length of a rectangle is 2 ft more than twice the width. The area of the rectangle is 84ft2. Find the length and width of the rectangle.
Click here to see answer by stanbon(75887)

Question 188867: Suppose that the width of a rectangle is 2 inches shorter than the length and that the perimeter of the rectangle is 80.
Set up an equation for the perimeter involving only L, the length of the rectangle.
Solve this equation algebraically to find the length of the rectangle. Find the width as well.
Length ______, Width ______

Click here to see answer by jonvaliente(64)

Question 188866: A tennis club offers two payment options:
Option1: $32 monthly fee plus $3/hour for court rental
Option 2: No monthly fee but $6.50/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=_________________
Option 2: C=_________________
b) How many hours would you have to rent the court so that 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. Round to 3 decimal places if necessary.
Click here to see answer by jonvaliente(64)

Question 188880: Y= -2 x
-------
3
2x + 3y = 5

Click here to see answer by Mathtut(3670)

Question 188922: Find an equation of the line containing the given pair of points (3,5) and (9,7)
Click here to see answer by Mathtut(3670)

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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