Answer:
C -5/3
Step-by-step explanation:
y2-y1/x2-x1
6- -4/ 2-8
-5/3
Given equation : y=ax^2
Taking a to the other side we have, x^2=(1/a)*y
This equation describes a parabola that opens up.
When a is negative, the focus is on the negative y-axis, therefore, the parabola opens down.
The answer is a. down.
Ok, let's find how much does 1 yard of ribbon cost. Let's divide!

Each yard costs $1.50, so let's multiply that by 10

Marci will pay $15 for 10 yards of the ribbon.
Answer:
x= -3-sqr30/7
Step-by-step explanation: