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ira [324]
4 years ago
12

For the function f(x)=5x^2-7x, what is f(-3)? *

Mathematics
2 answers:
-Dominant- [34]4 years ago
8 0

Answer:

The answer to your question is   f(-3) = 66

Step-by-step explanation:

Data

Function             f(x) = 5x² - 7x

Process

To find f(x), just substitute the -3 in all the x's of the original equation and simplify.

-Substitution

                          f(-3) = 5(-3)² - 7(-3)

-Simplify

                          f(-3) = 5(9) + 21

                          f(-3) = 45 + 21

-Result

                          f(-3) = 66

blsea [12.9K]4 years ago
6 0

f(-3) = 66

Step-by-step explanation:

5(-3)^2-7(-3)

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Answer:

<h3>             (8, –3)</h3>

Step-by-step explanation:

Translation right or left means change of the x-coordinate.  

Translation up or down means change of the y-coordinate.

Translation right or up means adding.

Translation left or down means  subtracting.

A=(x_A, y_A)\quad\rightarrow\quad B=(x_A+4,\,y_A-4)\\\\x_A+4=12\qquad\qquad y_A-4=-7\\\\x_A=12-4\qquad\qquad y_A=-7+4\\\\x_A=8\qquad\qquad\qquad y_A=-3\\\\A=(8,-3)

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3 years ago
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Step-by-step explanation:

Looking at option A,

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Looking at Option B,

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