SOLUTION: write the standard form of the equation of the line through the pair of points (2,-8) (-7,5)

Algebra ->  Linear-equations -> SOLUTION: write the standard form of the equation of the line through the pair of points (2,-8) (-7,5)      Log On


   

Question 662525: write the standard form of the equation of the line through the pair of points (2,-8) (-7,5)
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

Solved by pluggable solver: FIND EQUATION of straight line given 2 points
hahaWe are trying to find equation of form y=ax+b, where a is slope, and b is intercept, which passes through points (x1, y1) = (2, -8) and (x2, y2) = (-7, 5).
Slope a is .
Intercept is found from equation a%2Ax%5B1%5D%2Bb+=+y%5B1%5D, or -1.44444444444444%2A2+%2Bb+=+-5.11111111111111. From that,
intercept b is b=y%5B1%5D-a%2Ax%5B1%5D, or b=-8--1.44444444444444%2A2+=+-5.11111111111111.

y=(-1.44444444444444)x + (-5.11111111111111)

Your graph: