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telo118 [61]
3 years ago
12

The -30 is the one I need help on

Mathematics
1 answer:
Genrish500 [490]3 years ago
6 0

First you want to lay out the equation:

1. -30 = w + 8

Next you want to subtract 8 from each side

2. -30 = w + 8

     -8 = w - 8

Then you want to add -30 and -8

3. -30 + -8 = -38

This is your answer

4. -38 = w

Or this could be written as:

5. w = -38

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Plot the corresponding points for the inverse of the function represented by this table of values. x -4 0 3 7
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Answer:

See explanation

Step-by-step explanation:

Given the function f(x) for which

\begin{array}{ccccc}x&-4&0&3&7\\ \\f(x)&9&5&2&-2\end {array}

If you want to plot the corresponding points for the inverse of the function f(x), change f(x) into y:  

\begin{array}{ccccc}x&-4&0&3&7\\ \\y&9&5&2&-2\end {array}

switch x and y

\begin{array}{ccccc}y&-4&0&3&7\\ \\x&9&5&2&-2\end {array}

and then change y into f^{-1}(x).

You get

\begin{array}{ccccc}x&9&5&2&-2\\ \\f^{-1}(x)&-4&0&3&7\end {array}

Now plot these points on the coordinate plane (see attached diagram).

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