Question

Write the equation for the function represented

Answer 1

Explanation:

formula for equation is

y=mx+b

b= y-intercept, meaning when x is 0, y=b

b= -1

m is slope = rise/run or
`(y_(2)- y_(1) )/(x_(2)- x_(1) )`

(1,2) (2,5)

m=
`(5-2)/(2-1) = (3)/(1)` I picked the last 2 points because positive numbers are easier

m=3

now put into formula

y=3x-1