Select the correct answer from each drop-down menu. according to the graph, the relationship between the number of rose plants and the number of roses is .

a. proportional

b. not proportional

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.

Yvaries directly as x. y =90 when x=6. find y when x=13