If y = 8 - 5x +4x^2, what is the value of y when x=-2?
2 answers:
Answer: y=34
Step-by-step explanation:
input -2 into the equation and solve for y.
y= 8 - 5(-2) + 4(-2)^2
y = 8 + 10 + 4 * 4
y = 8 + 10 + 16
y= 18 + 16
y = 34
Answer:
34
Step-by-step explanation:
We simply plug in x = -2 into the equation so when x = -2:
y = 8 - 5 * (-2) + 4 * (-2)² = 8 + 10 + 16 = 34.
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