What proportion can be used to find 65% of 90?

Step-by-step explanation:

65% means 65 out of 100, or 65/100.

65% of 90 is an unknown number, x.

65 is to 100 as x is to 90.

65/100 = x/90

Hope it helps.

h is the x-coordinate of the vertex

step-by-step explanation:

we have

in this function

the point represent the vertex of the function

so

h is the x-coordinate of the vertex

k is the y-coordinate of the vertex