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fenix001 [56]
3 years ago
11

Find f(5) and f(-1) for the equation:

Mathematics
2 answers:
valkas [14]3 years ago
8 0

Answer:

C. -8 and 4

Step-by-step explanation:

Step 1: Plug in f(5)

f(5) = -2(5) + 2

f(5) = -10 + 2

f(5) = -8

Step 2: Plug in f(-1)

f(-1) = -2(-1) + 2

f(-1) = 2 + 2

f(-1) = 4

adoni [48]3 years ago
3 0

Answer:

-8 and 4

Step-by-step explanation:

Put x as 5 and solve.

f(5) = -2(5) + 2

f(5) = -10 + 2

f(5) = -8

Put x as -1 and solve.

f(-1) = -2(-1) +2

f(-1) = 2 +2

f(-1) = 4

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Write the phrase as an expression. Then evaluate when x=5 .
faust18 [17]

Answer:

\frac{x+4}{3} ; 3

Step-by-step explanation:

In this question, we're being asked to write an equation using the word format. Let's find key words in the statement.

The <u>sum</u> of a <u>number x and 4</u>, <u>all divided by 3.</u>

<u></u>

Looking at the wording, we can conclude that we are adding x and 4, and dividing that by 3. So here's how the phrase would look as an expression.

\frac{1}{3} (x+4) or \frac{x+4}{3}

Now, there's another part to this problem. We must evaluate the value of the expression if x is given to be 5. So let's plug it into our equations.

<u>(5)+4</u>

   3

    \frac{9}{3}

9/3 gives you 3, so your answer would be 3.

Let me know if you see any errors or have any further questions, otherwise, I hope this helped! :)

5 0
3 years ago
PLEASE HELP If f(x) = 2x-1 + 3 and g(x) = 5x - 9, what is (f-g) (x)
Anton [14]

Answer:

  2^(x-1)  -5x +12

Step-by-step explanation:

f(x) = 2^(x-1) + 3

g(x) = 5x - 9

(f-g) (x) =  2^(x-1) + 3 - ( 5x-9)

Distribute the minus sign

             2^(x-1) + 3 -  5x+9

Combine like terms

             2^(x-1)  -5x +12

3 0
4 years ago
TJ is investing his birthday money in a savings account that pays 3% interest. If he invests $200, how much will he have at the
Furkat [3]

Answer:

A. $204.50

Step-by-step explanation:

4 0
3 years ago
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meriva
A. If you divide 6 by 5, you will get 1.2 . So then if you add the 4/15 it will probably be 30 2/3. Because letter C. (31 1/3) seems like too much.
3 0
3 years ago
The diameter of a circle has endpoints whose coordinates are R(-2, 2) and S(4, 2). The radius of the circle has length _____.
expeople1 [14]
A - 3

Using the coordinates of the diameter, it is possible to figure out the radius.

Using the y axis, you can determine that 4 and -2 total to be six apart, leaving the diameter to be six. Knowing that the radius is half of the diameter, you can easily split the diameter in half to get the radius of 3.

Hope this helps!
4 0
3 years ago
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