5. what is the direction of the opening of the graph of the quadratic function if the value of a is negative.
a. opens to the right
b. opens to the left
c. opens upward
d. opens downward
6. what is the value of a of the function y= 5(×-2)² +3?
a. opens to the right
b. opens to the left
c. opens upward
d. opens downward
6. what is the value of a of the function y= 5(×-2)² +3?
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Answer:
5. D
why because
if a is negative it opens downward(the parabola) and if it is positive it goes upward
6. 5 is the value of A
why because
that equation can be rewritten as
5x²-20x+23 and the value of a is 5