1) Plugging in point (-2,5) and slope m=7 into the slope-intercept formula to get the linear function we have:
5=7(-2) +b
5=-14+b
5+14=b
b=19
2) So we can state that y=7x +19 is the function we're looking for.
5 = 7(-2) + 19
5 = -14 +19
5 = 5 True
