Solution: We are given:
Predicted Sales by Sameera
Actual Sales by Sameera
Now to find the Percent error, we have to use the below formula:
Therefore, the percent error is
Answer:
Up
Step-by-step explanation:
Y= 1x^2 + 3x + 9
Y= Ax^2 + Bx + C
To determine which way a parabola opens just look at the coefficient (the number) of the x^2 - Always use the coefficient that is beside the x^2
So, if the coefficient A is positive the parabola is opening upward
if the coefficient A is negative the parabola is opening downward
