y=mx+b=5x+b
put in the x,y point, solve for b.
7=5*1+b
b=2
y=5x+2
write an equation in point slope form for the line with the given slope that contains the given point..
slope=5;(1,7) is on the line
(8,-2) and (4,-4) are on the line
2 answers
(8,-2) and (4,-4) are on the line
Find slope: m = y2 - y1/x2 - x1
-4 - (-2)/4 - 8 = -2/-4 = 1/2
m = 1/2
Use either point to find y-intercept.
y = mx + b
-4 = 1/2(4) + b
-4 = 2 + b
-4 - 2 = 2 - 2 + b
-6 = b
y = 1/2x - 6
Find slope: m = y2 - y1/x2 - x1
-4 - (-2)/4 - 8 = -2/-4 = 1/2
m = 1/2
Use either point to find y-intercept.
y = mx + b
-4 = 1/2(4) + b
-4 = 2 + b
-4 - 2 = 2 - 2 + b
-6 = b
y = 1/2x - 6