Kevin ran 4 miles more than Steve ran. The sum of

1 answer:

3 0

$x- Kevin\ distance\\\\y-Steve\ distance\\\\
x=y+4\\and\\x+y=26\\\\Substituting\ x=y+4\\\\
y+4+y=26\\\\2y=26-4\\\\2y=22\ \ \ |:2\\\\y=11\\\\x=11+4=15\\\\Steve \ ran\ 11miles.$

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G = {(5, 3), (2, 3), (6, 4)} Is G-1 a function and why?

galben [10]

To get G^-1 all we need to do is flip the points around Example for (5,3) make it (3,5)
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If there are x values that are the same, they MUST have the same y value.
look at the points (3,5) and (3,2) those have the same x but they go to different y values so it is not a function.

You can think about it like this. Can you go to more than 1 place at the EXACT same time? Obvious answer is no. Can you have multiple people go to the same room? Sure that is possible. Same with functions. An x value can ONLY go to 1 y value, and many different x values can go to the same y value.

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A parallelogram has a base of length xplus 7 and a height of xplus 2 and has an area of 50 square units. Find the base and heigh

iris [78.8K]

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