Mathematics 106

Question

If  is a linear function, , and , find an equation for 

Answer 1

You can use the "slope/intercept" form: y = mx + b

To find m and b, you can create 2 equations using the two stated points: (-5 , 2) and (5 , -3)

This gives us:

2 = m(-5) + b

-3 = m(5) + b

Solve this for m by subtracting one equation from the other, thus eliminating the b. Once you have m, then enter into either equation and solve for b.