[SOLVED]
2 answers:
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Answer:
vertex = (- 2, - 36)
Step-by-step explanation:
Given a parabola in standard form : y = ax² + bx + c : a ≠ 0
Then the x- coordinate of the vertex is
= -
f(x) = 5x² + 20x - 16 is in standard form
with a = 5, b = 20 and c = - 16
= -
= - 2
Substitute x = - 2 into f(x) for corresponding y- coordinate
f(- 2) = 5(- 2)² +20(- 2) - 16 = 20 - 40 - 16 = - 36
vertex = (- 2, - 36)
Pyth. theorem
=18.33
=18.3 (corr. to the nearest tenth)
=18.33
=18.3 (corr. to the nearest tenth)
Answer:
x= 5/2 + y/2
Step-by-step explanation:
So yeah... that's the answer
