(-100-20)/(40-20) = -6
so, the slope is -6, and we start with
h = -6x
But -6(20) = -120, and h(20) = 20. So
h(x) = -6x + 140
You can check to make sure this fits the other points as well.
What is the linear equation for the following table?
x h(x)
20 20
40 -100
60 -220
80 -340
100 -460
2 answers
Thank you so much @steve