A
Given a quadratic in standard form : y = ax² + bx + c ( a ≠ 0 ), then
The x-coordinate of the vertex is
= -
y = - 3x² + 2x - 7 is in standard form
with a = - 3, b = 2 and c = - 7, hence
= -
=
Substitute this value into the equation for y-coordinate
y = - 3 ()² + 2 (
) - 7
= - +
-
= -
vertex = ( , -
) → A
Answer:
Jerry does cases per hour (Rounded to 2 decimal places). As we cannot do 0.11 cases. We can say Jerry does 2 cases per hour.
Step-by-step explanation:
to find the number of cases per hour, we have to divide the number of cases by number of hours taken for those cases,
Number of cases per hour =
= cases per hour
= cases per hour
= cases per hour
= cases per hour (Rounded to 2 decimal places)
As we cannot do 0.11 cases. We can say Jerry does 2 cases per hour.
