Evaluate |x + y|, for x = 8 and y = -15.

1 answer:

8 0

First, we substitute the numbers to the corresponding variables.

|(8) + (-15)|

And we change the plus sign since we’re just basically subtracting.

|8 - 15|

|-7|

Now to do absolute values, we must remember that it will always equal a positive unless there is a negative sign outside of the | |.

So the final answer will be 7.

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There will be only one turning point for parabola

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To find vertex we use formula x= $\frac{-b}{2a}$

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The graph is attached below.

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How can we create equations in two variables to represent relationships between quantities

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