Question

The points (-4,-3) and (-1,-8) are on a line. Find intercepts to the nearest tenth.
How would i set up this problem to solve to get one of these answers?
A) x=-5.8 y=-9.7
B) x=-5 y=-11
C) x=5.8 y=-9.7
if you show me how to solve this problem.. you'll receive a medal & a fan!

Answer 1

that is the equation plug in the point

Answer 2

points*

Answer 3

Use slope formula m = y2 - y1/x2 - x1 where m = slope
Then when u find the slope plug it in the point slope formula y - y1 = m (x - x1)
y1 = -3 and x1 = -4
Simplify your answer to standard form and, first, set x equal to 0 to find the y - int. Then, set y equal to 0 to find the x - int.

Answer 4

lets start with finding the slope...
y2 = -8
y1 = -3
x2 = -1
x1 = -4
m = (-8) - (-3)/(-1) - (-4)
m = -5/3

Answer 5

i got that part

Answer 6

but finding the other part, I dont get

Answer 7

Then take that -5/3 and plug it in the point slope formula...
y1 = -3
x1 = -4
y - (-3) = -5/3 (x - (-4))
Do you get how i plugged it in @Bri37?

Answer 8

i get that part & whats the next . i dont understand or know how to do the next part

Answer 9

Okay...next, we simplify what we plugged in...
y - (-3) = -5/3 (x - (-4))
y + 3 = -5/3 (x + 4)
Do you understand how i got this?

Answer 10

Got that. i dont understand about how you'll get the right answer

Answer 11

Well, what we have to do next is simplify further and put it in standard form...we do this so we can find the x and y intercepts...