Question

What is the range of this set of ordered pairs?
{(5, 2), (-5, 0), (6, 2), (2, 7)}
A. {0, 2, 7}
B. {-5, 0, 2, 5, 6, 7}
C. {-5, 2, 5, 6}
D. {-5, 0, 2, 7}

Answer 1

HI!!

Answer 2

make a list of the second numbers in each pair
that is all

Answer 3

is it A then?

Answer 4

yep

Answer 5

yeppers

Answer 6

Domain is the values that x is allowed to be
range is the values that the y's end up being
So....
Since quadratics have a turning point (vertex, max/min) the range is not all real numbers, it is y > or equal to the y of the turning point for a parabola that opens up and y < or equal to the y of the turning point for a parabola that opens down, because the y's don't continue in the same direction, they turn around.

In your situation, you range is all your "y" values. So 2,7,0.

Hope that helps.

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