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Anestetic [448]
3 years ago
12

Evaluate the function f(x) = 2x3 - 6x + 1 for f(-2).

Mathematics
1 answer:
erma4kov [3.2K]3 years ago
7 0

Answer:

- 3

Step-by-step explanation:

f(x) = 2 {x}^{3}  - 6x + 1 \\ plugging \: x =  - 2 \\ f( - 2) = 2( { - 2})^{3}  - 6( - 2)+ 1  \\  = 2 \times ( - 8) + 12 + 1 \\  =  - 16 + 13 \\  =  - 3 \\ f( - 2) =  - 3

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The value of x where the expression –4x – 8 will be equivalent to –9x –1 will be 7/13.

<h3>How to calculate the value?</h3>

It should be noted that we are simply to find the value of x where the expression –4x – 8 will be equivalent to –9x –1.

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2 years ago
PLEASE HELP ASAP 35 POINTS
podryga [215]

Your answer is A

It cannot be C because the line y > -2  uses the (>) greater than symbol.

When equations have a greater than symbol, they are graphed using a <u>dotted line. </u>

It cannot be D because the line is  y ≤ - l x-1 l

with the less than or equal to sign (≤) , you use a <u>solid line</u> to graph


With the<u> greater than</u> symbol for y > -2 , the shaded region must be <em>above </em>this line.

With the <em>less than </em>or equal to sign in y ≤ - l x-1 l , the shaded region must be <em>below </em>the line.


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