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KIM [24]
3 years ago
15

5. Evaluate the function f (x) = 4 • 7x for x = -1 and x = 2. Show your work.

Mathematics
1 answer:
castortr0y [4]3 years ago
5 0

Answer:

f(-1) = -28 f(2) = 56

Step-by-step explanation:

f(-1) = 4 * 7(-1)

f(-1) =4* -7

f(-1) = -28

f(2) =4 * 7(2)

f(2) =4* 14

f(2) = 56

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Multiply: (4x – 7)(2x – 9)
harina [27]
Hello there!


Let's use foil.

First: 4x * 2x = 8x^2

Outside: 4x * -9 = -36x

Inside: -7 * 2x = -14x

Last: -7 * -9 = 63

Now, let's combine these.

8x^2 - 36x - 14x + 63

Finally, we can simplify this

8x - 50x + 63



I hope I helped!

Let me know if you need anything else!

~ Zoe
4 0
4 years ago
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On a scale drawing, a school is 3 feet tall the scale factor is 1:7 what is the height
ASHA 777 [7]
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6 0
3 years ago
Line C and D are perpendicular. If the slope of a line c is -4, what is the slope of line D?
andrew11 [14]

Answer:

1/4

Step-by-step explanation:

The slope of a line is the steepness of a line.

The slope of a perpendicular line is always the negative reciprocal of the slope of the line it is perpendicular with.

Since line C has a slope of -4, the negative reciprocal of that is 1/4.

Reciprocals are two numbers that multiply together to get 1.

For example, -1/4*-4/1=1

Therefore the negative recipricol is 1/4

4 0
4 years ago
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PROBLEM: Four women (Linda, Lisa, Glenda, and Dee) are married to four men (Tom, Duane, Ron, and Ernie). From the clues, determi
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Answer:

How about asking your math teacher for help, instead of going to the internet?  As your math teacher, I think it would be a better idea than having your teacher find your internet post!

Step-by-step explanation:

I'll be waiting for an email.

4 0
4 years ago
Which fraction is not in simplest form? 10/21 6/7 3/5 4/6
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Answer:

The answer is D) 4/6. This can be simplified to 2/3. Hope this helps! :)

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3 years ago
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