Do these pairs of values (x and y) represent two quantities that are proportional?
ху
312
5 20
6 24
9 36
O A. Yes, because all of the pairs represent the same ratio.
OB. No, because none of the pairs is a simplified ratio.
ОООО
C. No, because the y-values are not increasing at a constant rate.
D. Yes, because as x increases, y increases.

B. 2 1/2 feet. multiply 2.5 inches by 12 to get thirty inches then divide by 12 to get 2.5 feet

The correct answer is b

First locate the turning point (vertex) of the graph. which is at the coordinates x=5 and y=9 or (5; 9).to determine whether it's a maximum or mininum value, you have to discern whether the vertex's y-value is the highest value or lowest value the graph can reach. since the vertex's y-value, 9 is the highest value the graph can reach, it will be a maximum.another basic way to determine whether the vertex's value is max or min is to see if the graph is smiling or sad. if it's smiling, the turning point/vertex would be a minimum, while a sad parabola would have a maximum y-value at the vertex.