Question

Find the equation in slope-intercept form of the line that passes through the points (-2,4) and (6, 2).


A)
y = 4x + 12


B)
y = 4x - 18


C)
y =1/4x +9/2



D)
y = -1/4x +7/2

Answer 1

Do you know which one is x1 and x2?

Answer 2

Because I forget which one is which

Answer 3

x1 issssss the 2nd one of the first one i think

Answer 4

x1,y1
x2,y2

Answer 5

ohhhhh so that's how you do this hahaha

Answer 6

Still need me to help? :P

Answer 7

yeah i got 2 over negative 8 and now i dunno what to do :|

Answer 8

is it D?

Answer 9

Okay i'll show you how to do this:
y = mx + b
So since you know which points are x1,y1 & x2,y2
you'd do M = y2-y1
-------
x2-x1
The y-intercept b of the line is the value of y at the point where the line crosses the y axis. Since for point (x1, y1) we have y1 = mx1 + b, the y-intercept b can be calculated by:
b = y1 - mx1

But the answer is C.

Answer 10

dang it lol

Answer 11

You were closer than a and b :P