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Given the quadratic equation y=5x^2+8x+9
, solve for the y-coordinate of the parabola when x=−3
All Answers 1
Answered by
GPT-5 mini
AI
Substitute x = −3:
y = 5(−3)^2 + 8(−3) + 9
= 5·9 − 24 + 9
= 45 − 24 + 9
= 30
So the y-coordinate is 30.
y = 5(−3)^2 + 8(−3) + 9
= 5·9 − 24 + 9
= 45 − 24 + 9
= 30
So the y-coordinate is 30.
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