Question

Write the slope-intercept form of the equation for the line.

http://i1255.photobucket.com/albums/hh639/zigzagoon20001/Question9Graph_zps21897e41.png

A. y = -5/8x + 1/2

B. y = 8/5x - 1/2

C. y = 5/8x + 1/2

D. y = 8/5x + 1/2

Answer 1

are you familiar with the two point formula? because for me, it's the easiest method in this situation

Answer 2

No.

Answer 3

\[\huge y - y_1 = \frac{y_2 - y_1}{x_2 - x_1} (x - x_1)\]
doesn't ring a bell?

Answer 4

Sorry, but I'm afraid not.

Answer 5

what about the formula for slope \[m = \frac{y_2 - y_1}{x_2 - x_1}\]
does that ring any bells?

Answer 6

No.

Answer 7

what about the slope intercept form...do you know the slope-intercept form?

Answer 8

I am not familiar with it.

Answer 9

Taking some information from the diagram, the points (4,3), (-4,-2) pass through the line.
Hence, y' (slope) = (3-(-2))/(4-(-4)) = 5/8
y-3 = 5/8 (x-4)
y = 5/8 x + 1/2

Answer 10

@zigzagoon2000 Can you say what are the coordinates on graph which are marked as dots?