What is the extreme f(x)=-0.1x^2+1.4x+98.9 ?

The extreme f(x)=-0.1x^2+1.4x+98.9 is Maximum(7,103.8)

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extreme f(x)=-0.1x^2+1.4x+98.9

extreme points

f (x) = - 0.1 x^{2} + 1.4 x + 98.9

Maximum (7, 103.8)

Solution steps

f^{'} (x) = - 0.2 x + 1.4

Find intervals:

Increasing

: - \infty < x < 7,

Decreasing

: 7 < x < \infty

Plug

x = 7

into

- 0.1 x^{2} + 1.4 x + 98.9 : 103.8

Maximum (7, 103.8)

f (x, y) = 6 y^{2} + 4 x^{2} + 4 x y - 16 y + 8 x

y = (lo g_{10} (5 x)) + (3 I n x^{3})

x^{2} + \frac{640}{x}

f (x) = 2 x^{2} + \frac{10800}{x}

f (x, y) = x^{2} + y^{2} + 6 x - 4 y + 13

What is the extreme f(x)=-0.1x^2+1.4x+98.9 ?
The extreme f(x)=-0.1x^2+1.4x+98.9 is Maximum(7,103.8)