What is the rate of change for 8+ y = 2x

1 answer:

3 0

The rate of change is also known as the slope. To easily find the slope of a line, put the equation into slope intercept form by isolating y on one side.

8 + y = 2x
y = 2x - 8

By definition, the rate of change is 2.

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Can anybody tell me the answers to number 1, 2 & 3 ???!!!!

Novay_Z [31]

Problem 1

Domain = {-1, -3, 2, 1}

Range = {5, 0, 2}

The domain is the set of possible inputs and the range is the set of possible outputs. This is a function because each input goes to exactly one output.

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Problem 2

This is a function as well. We do not have any input going to multiple outputs.

Domain = {-2, -3, 5}

Range = {6, 7, 8}

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Problem 3

This is not a function. The input -4 goes to more than one output (outputs 3 and -1 at the same time)

Domain = {-4, -2, 0}

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scZoUnD [109]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Solve the following absolute value inequality graphically: |x|-3>1.

Dovator [93]

Answer:

x < -4 ∪ x > 4

Step-by-step explanation:

The absolute value function is shifted down 3 units. The solution space is values of x where y = |x|-3 is greater than 1. The solution is shown in red in the attachments, and the left and right (dashed) sides of the inequality are shown in blue.

I personally prefer to rewrite the inequality so the comparison is to <em>zero</em>. That is done in the second attachment, which rewrites it to ...

|x| -4 > 0

by subtracting 1 from both sides. It is often easier to read the values of x-intercepts than it is to read the coordinate values where lines cross each other.