SOLUTION: A line passes through (-7, 1) and (4, 4). Identify the slope intercept form of an equation of the line

Algebra ->  Linear-equations -> SOLUTION: A line passes through (-7, 1) and (4, 4). Identify the slope intercept form of an equation of the line      Log On


   

Question 1132330: A line passes through (-7, 1) and (4, 4). Identify the slope intercept form of an equation of the line
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

the slope intercept form of an equation of the line:
y=mx%2Bb
if a line passes through (-7, 1) and (4, 4), first find a slope
m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29
m=%284-1%29%2F%284-%28-7%29%29
m=3%2F%284%2B7%29
m=3%2F11
y=%283%2F11%29x%2Bb...plug in coordinates of one point to find y-intercept b
4=%283%2F11%294%2Bb
4=12%2F11%2Bb
b=4-12%2F11
b=44%2F11-12%2F11
b=32%2F11

your equation is:
y=%283%2F11%29x%2B32%2F11