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3 years ago

8

Please help me answer this with an explanation

2 answers:

Nata [24]3 years ago

5 0

You need to find the slope first. (-9,-4). (3,4)

-4-4= -8
-9-3 =-12. Slope is -8/-12 or 8/12 or 2/3

Perpendicular is the negative reciprocal. Or flip over the 2/3 and make it negative.

The answer is - 3/2

elixir [45]3 years ago

5 0

The change in y as we move from the first point to the second is 8, and the corresponding change in x is 12. Thus, the slope of the line thru these two points is 8/12, or 2/3 (answer C).

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Which function has an inverse function?

daser333 [38]

Answer: Option B

Step-by-step explanation:

By definition, only those functions that are one to one have an inverse function.

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Note that the function $f(x)= \frac{|x+3|}{5}$ is not a one-to-one function

When x=2 $f(x)= \frac{|2+3|}{5}=1\ ,\ \ y=1$

When x=8 $f(x)= \frac{|-8+3|}{5}=1\ \ ,\ y=1$

Note that the function $f(x)= \frac{x^4}{7}+ 27$ is not a one-to-one function

When x=1 $f(x)= \frac{(1)^4}{7}+27\ ,\ \ y=\frac{190}{7}$

When x=-1 $f(x)= \frac{(-1)^4}{7}+27\ ,\ \ y=\frac{190}{7}$

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When x=1 $f(x)= \frac{1}{(1)^2}\ ,\ \ y=1$

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Then the answer is the option B.

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3 years ago

Find the distance speed=96km/h time=20 mins

Alex_Xolod [135]

Answer:

32km

Step-by-step explanation:

speed=96km/h

time=20mins=1/3hour

<h3>Distance=Speed×Time</h3>

➜96×1/3

➜96/3

➜32km

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Answer:

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Step-by-step explanation:

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