Question

Find the equation of the linear function x 1 2 3 4 y -2 1 4 7

Answer 1

x 1 2 3 4

y -2 1 4 7​

For this case we can find the slope with two points lets select (1,-2) and (2,1) so we have:

`m=(1+2)/(2-1)=3`

And we can find the intercept with a point for example (2,1) we have:

`1=3(2)+b`

And then b= 1-6= -5

And the equation would be:

`y=3x-5`

y= 3x-5