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Otrada [13]
3 years ago
9

Find the value of f(3) for each of the following:

Mathematics
1 answer:
alexgriva [62]3 years ago
8 0

Answer:

Step-by-step explanation:

1) f(x) = 7 - 8x²

f(3) = 7 - 8*3²

     = 7 - 8*9

     = 7 - 72

f(3) = -65

2) f(a) = -5(a-2)

f(3) = -5(3 -2) = -5 * 1 = -5

3)f(h) =\dfrac{-h}{72}\\\\\\f(3)=\dfrac{-3}{72}=\dfrac{-1}{24}

4) f(m) = m(m +4)

f(3) = 3*(3+4) = 3 * 7 = 21

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Answer:

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Step-by-step explanation:

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vova2212 [387]

Answer:

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6 0
3 years ago
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qwelly [4]
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The slopes of perpendicular lines are the opposite (+/-) reciprocal. We have 5/3 and -3/5. This shows they are perpendicular.
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Answer:

69

Step-by-step explanation:

7 0
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