Question

Tolong dibantu no 4-5 dengan benar + cara

Answer 1

4)
f(x) = x² +10x - 24
f ' (x) = 0
2x + 10 = 0
2x =  -10
x = -5
f(-5) = 25 -50 - 24 = - 49
tik (x,y) =(-5, - 49)
.
5)
h = 40t - 8t²
h'(t) = 0 --> 40 -16t  = 0
t = 40/16 = 5/2 DETK