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3 years ago

If f(x) = 2(3x) + 1, what is the value of f(2)?

Mathematics

1 answer:

Over [174]3 years ago

4 0

F(2)=2(3*2)+1
f(2)=2(6)+1
=13
answer is 13

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3 years ago

consider the function f(x) = x2 2x – 15. what are the x-intercepts of the function? left-most x-intercept: ( , 0) right-most x-i

eimsori [14]

we have

$f(x)=x^{2} +2x-15$

we know that

The x-intercept is the value of x when the value of the function is equal to zero

in this problem

Find the roots of the function

equate the function to zero

$x^{2} +2x-15=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$x^{2} +2x=15$

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2} +2x+1=15+1$

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Rewrite as perfect squares

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Square root both sides

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$(x+1)=(+/-)4$

$x=-1(+/-)4$

$x1=-1+4=3$

$x2=-1-4=-5$

$x^{2} +2x-15=(x-3)(x+5)$

therefore

<u>the answer is</u>

the x-intercepts are the points $(3,0)$ and $(-5,0)$

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3 years ago

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Answer:

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Step-by-step explanation:

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Answer:

This could be wrong, but i still wanted to help you.

Step-by-step explanation:

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Murljashka [212]

Answer:

Equal to each other

Step-by-step explanation:

I hope that helped!

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