Пошаговое объяснение:
v(t) = 6t² + 18t
v(4) = 96 + 72 = 168
a(t) = 12t + 18
a(4) = 48 + 18 = 66
45.
y = f(x0) + f'(x0)(x-x0)
f(-3) = 9 - 15 = -6
f'(x) = 2x + 5
f'(-3) = -6 + 5 = -1
y = -6 - (x + 3) = -x - 9
