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:
5.4 is rational. 5.4 divide by 2 is 2.45 5.3 and 5 3 are irrational, as it cant be divided easily
The answer should be $30 cause it's only 25% off
Answer is 17.647 or if rounded 18