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3 years ago

If f(x)=2x²-x find f(-3)

Mathematics

2 answers:

zzz [600]3 years ago

4 0

Answer: 21

Step-by-step explanation: To find f(-3) or the value of the function when x = -3, we plug in a -3 for the x in our function and we have 2(-3)² - (-3).

Start by simplifying the exponent to get 9.

So we have 2(9) - (-3) or 18 + 3 which is 21.

ivolga24 [154]3 years ago

3 0

Answer:

Step-by-step explanation:

f(x) = 2x^2 - x

f(-3) = 2*(-3)^2 - (-3)

=2*9 +3

=18 +3

=21

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1 year ago

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mr Goodwill [35]

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Step-by-step explanation:

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3 years ago

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GuDViN [60]

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Step-by-step explanation:

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3 years ago

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3 years ago

The formula for the area A of a triangle is A=(1/2)bh, where b is the length of the base and h is the height. Rearrange the form

zalisa [80]

Answer:

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Step-by-step explanation:

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3 years ago