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Gekata [30.6K]
3 years ago
11

If f(x) = 16x-30 and g(x) = 14(x)-6 for which value of x does (f-g) (x) = 0

Mathematics
1 answer:
almond37 [142]3 years ago
6 0
This is a system where (f-g)(x) is wanted.
(16x-30)-(14x-6) .... 2x-24 *be careful with signs and parenthesis placement.

Now set 2x-24 = 0 and so x = 12
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8 0
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Plz help!
beks73 [17]

First, you need to find the derivative of this function.  This is done by multiplying the exponent of the variable by the coefficient, and then reducing the exponent by 1.  

f'(x)=3x^2-3

Now, set this function equal to 0 to find x-values of the relative max and min.

0=3x^2-3

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To determine which is the max and which is the min, plug in values to f'(x) that are greater than and less than each.  We will use -2, 0, 2.

f'(-2)=3(-2)^2-3=3(4)-3=12-3=9

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To determine the values of the relative max and min, plug in the x-values to f(x).

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Hope this helps!!

7 0
3 years ago
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