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2 years ago

How do I find the rate of change when going from 4 then 2 then 8 then 14

Mathematics

1 answer:

Oksi-84 [34.3K]2 years ago

5 0

Answer:

1.75

Step-by-step explanation: 14 divided by 8 is 1.75

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Find the value of the expression |2x−8| where x=−2.5; 0; 4; 5; 9.5.

Lelu [443]

The absolute value $|x|$ returns the "positive version" of a number. In other words, if $x$ is already positive, then $|x|=x$ . Otherwise, if $x$ is negative, then the absolute value changes its sign, so that it returns positive: $|x|=-x$ .

So, in this case, we have to plug the required values for $x$ in the expression $2x-8$ . Then, if the result is positive we're ok, otherwise we discard the negative sign.

We have:

$x=-2.5 \implies |2x-8| = |-5-8|=|-13|=13$

$x=0 \implies |2x-8| = |0-8|=|-8|=8$

$x=4 \implies |2x-8| = |8-8|=|0|=0$

$x=5 \implies |2x-8| = |10-8|=|2|=2$

$x=9.5 \implies |2x-8| = |19-8|=|11|=11$

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3 years ago

how do you get the answer to y=2x-3? It has to with line graphs and I am completely lost! If anyone can take me through it step

Lerok [7]

You know that -3 is the Y intercept(vertical graph line) and then continue 2/1 every x value that is plugged in.

3 0

3 years ago

Read 2 more answers

How is 1.35 x 10–5 written in standard notation?

natka813 [3]

Answer:

13.5x - 5

Step-by-step explanation:

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2 years ago

A loan of $25,000 has an annual simple interest rate of 5.5%. The total cost of the loan is $38,750.

alisha [4.7K]

You will pay about $134407323

Step by step explanation;

3 0

2 years ago

Distance traveled varies jointly as rate and time. If Fred travels 135 miles in 3 hours at a rate of 45 mi/hr, find the rate at

Rudiy27

From the relation, d is joint proportionaly with r and t.
Thus,d = krt.

Using the first set of given, we could calculate for k.135 = k(45)(3)k = 1

Using the computed value of k.d = krtr = d/ktr = (189)/(1)(3.5) = 54 mph.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

6 0

3 years ago

How do I find the rate of change when going from 4 then 2 then 8 then 14​

How do I find the rate of change when going from 4 then 2 then 8 then 14