Question

Take the points you have selected and write the equation of the line using the point-slope formula. Change the equation to slope-intercept form. Show the work.

(2,5) and (3,4)

Answer 1

Help please I don't understand!

Answer 2

use the slope formula m=(y2-y1)/(x2-x1)

Answer 3

then plug in the value for m in the equation y-mx+b

Answer 4

solve for b

Answer 5

That's what I don't understand.

Answer 6

btw, I meant y=mx+b

Answer 7

m=(4-5)/(3-2)
m=-1

Answer 8

sub point (2,5) and m=-1 into y=mx+b and solve for b

Answer 9

How do you solve for b?

Answer 10

5=(-1)(2)+b
b=7

thus the equation of the line is y=-x+7