What is the extreme-0.015x^2+1.24x-7.4 ?

The extreme-0.015x^2+1.24x-7.4 is Maximum(124/3 ,18.22666…)

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extreme-0.015x^2+1.24x-7.4

extreme

Maximum (\frac{124}{3}, 18.22666 \dots)

Solution steps

f^{'} (x) = - 0.03 x + 1.24

Find intervals:

Increasing

: - \infty < x < \frac{124}{3},

Decreasing

: \frac{124}{3} < x < \infty

Plug

x = \frac{124}{3}

into

- 0.015 x^{2} + 1.24 x - 7.4 : 18.22666 \dots

Maximum (\frac{124}{3}, 18.22666 \dots)

What is the extreme-0.015x^2+1.24x-7.4 ?
The extreme-0.015x^2+1.24x-7.4 is Maximum(124/3 ,18.22666…)