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3 years ago

Evaluate the function for the given value. f(-3) if f(x) = 4x 2 + 7x

Mathematics

1 answer:

Natasha_Volkova [10]3 years ago

3 0

Answer:

x = 15

Step-by-step explanation:

f(x) = 4x² + 7x

= 4(-3)² + 7(-3)

= 36 + (-21)

= 15

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luda_lava [24]

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OverLord2011 [107]

Answer:

Switch x and y, and solve for y

$f^{-1}(x) =\frac{(x -4)^3}{8}$

Step-by-step explanation:

Given

$f(x) = 3\sqrt{8x} + 4$

Required

Complete the steps to determine the inverse function

Solving (a): Complete the blanks

Switch x and y, and solve for y

Solving (b): Determine the inverse function

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Replace f(x) with y

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$x = \sqrt[3]{8y} + 4$

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$y =\frac{(x -4)^3}{8}$

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$f^{-1}(x) =\frac{(x -4)^3}{8}$

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3 years ago

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tangare [24]

1)Find all the like terms=3x3x/6>1/3x+2

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3)Move the variables to the left side and change the sign=9x-2x>12

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