Y^2 -11y = 0
We can factor it:
y * (y -11) = 0
So y = 11, 0
<span>average rate of change = (f(7) - f(5)) / (x7 - x5)
</span>f(7) = <span>12 (7^3) + 12 = 4128
f(5) = </span>12 (5^3) + 12 = 1512
so
average rate of change = (4128 - 1512)/(7-5)
average rate of change = 2616 / 2
average rate of change = 1308
hope it helps
4x + 2x< 5x-13
solve
6x < 5x-13
subtract 5x
x< (-13)