How do you label vertices on an image figure?

1 answer:

4 0

After you get your pre image ploted in the graph then you label your image with a ' such as if your preimage is a then your image is a'

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The sum of a whole number and twice its square is 21. Find the whole number

I am Lyosha [343]

SOLUTION:

Let whole number = x

x + 2x^2 = 21

2x^2 + x - 21 = 0

2x^2 + 7x - 6x - 21 = 0

x ( 2x + 7 ) - 3 ( 2x + 7 ) = 0

( 2x + 7 ) ( x - 3 ) = 0

2x + 7 = 0

2x = - 7

x = - 7 / 2

OR

x - 3 = 0

x = 3

ANSWER:

Therefore, as 3 is a whole number while - 7 / 2 isn't a whole number, the whole number must be 3.

Hope this helps! :)
Have a lovely day! <3

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Find the y-intercept of the line on the graph.

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Answer:

The y-intercept is at (0,2)

Step-by-step explanation:

If you loom at the vertical line in bold on the graph, you will see that the blue line is going through the y-axis.

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The temperature in Monarch, Wisconsin, was -3° F at 6:00 a.m. The temperature rose 12 degrees in 9 hours. What was the temperatu

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