Find the value of x
PIC IS BELOW

Aline passes through 3,7 and 6,9 what equation represents the line

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4

In order for the function to be linear, what must m be and why? m = 22 because the rate of change is 1. m = 20 because the rate of change is 3. m = 22 because the rate of change is -1. m = 20 because the rate of change is -3.