Answer:
y = -8
Step-by-step explanation:
To find the value for y, use the slope formula:
[tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]
Substitute m = 3 and (-9,y) and (-7,-2).
[tex]-3 = \frac{y--2}{-7--9} \\\\-3 = \frac{y+2}{-7+9}\\\\ -3 = \frac{y+2}{2}\\\\-6 = y + 2\\\\-8 = y[/tex]