PLS PLS HELP WITH MATH

A. Opens down, vertex at (0,-6), shifted 6 units down

Step-by-step explanation:

First, lets determine whether the function opens up or down. This is simple enough, If the is positive, the parabola opens up, and if the is negative, the parabola opens down.

As the is negative, the parabola opens down

Next, lets determine the vertex of the parabola. To do this, we can use the formula in order to determine the x-value of the vertex. Just as a reminder, the form of a quadratic equation is

In the case of this function, a=-1, b=0, and c=-6.

Let us plug these values into the formula

This means that the x-value of the vertex is 0. To find the y-value, we can simply plug 0 into the function

This means that the ordered pair of the vertex would be

Lastly, we need to determine the relation of this function to its parent function. Recall that the vertex of is .

When we compare the parent function compared the the translated one, we can see that it is 6 units down from the parent function.

salary

step-by-step explanation:

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)