To find the y-coordinate of the parabola when x = -3, we need to substitute -3 into the equation for x:
y = 5(-3)^2 + 8(-3) + 9
Simplifying,
y = 5(9) - 24 + 9
y = 45 - 24 + 9
y = 30
Therefore, when x = -3, the y-coordinate of the parabola is 30.
Given the quadratic equation y = 5x2 + 8x + 9 so for the y-coordinate of the parabola when x = -3
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