How to solve a system of equations

1 answer:

3 0

First , you need to use elimination method .In the elimination method you either add or subtract the equations to get an equation in one variable .

I hope that's help !

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Let f(x)=−14(x+4)2−8 .

nevsk [136]

Answer:
Average rate of change = -112

Explanation:
The average rate of change = $\frac{f(b) - f(a)}{b - a}$
where:
b is the upper limit = 2
f(b) = f(2) = -14(2+4)² - 8 = -512
a is the lower limit = -2
f(a) = f(-2) = -14(-2+4)² - 8 = -64

Substitute with these values in the above equation to get the average rate of change as follows:
average rate of change = $\frac{-512 - (-64)}{2 - (-2)} = -112$

Hope this helps :)

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A machine called Feynman, produces output, that is 5 times its input followed by an increase of 2. Another machine called Maxwel

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A 5-pound bag of apples cost $3.50. Use that rate, to complete the table to identify equivalent ratios, and then answer the ques

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It costs $0.7 per pound.