Question

HELP QUICK PLAZZZZ I NEED THIS SO
QUICKLY

Answer 1

39

Explanation:

j(x) = mx + 144

so if x = 12, j(x) = 18

18 = m(12) + 144

12m = 18 - 144

12m = -126

m = -126/12 = -10.5

so j(x) = -10.5x + 144

if x = 10, then

j(10) = -10.5(10) + 144

j(10) = -105 + 144

j(10) = 39