Q. Determine the value of y, if x is −9 .y=x2−1Answer:
Substitute x into function: Substitute the given value of x into the function.We have the function y=x2−1 and we need to find the value of y when x is −9.Substitute x=−9 into the function.y=(−9)2−1
Calculate square of −9: Calculate the square of −9.(−9)2=81Now, substitute this value back into the equation for y.y=81−1
Subtract 1 from 81: Subtract 1 from 81 to find the value of y.y=81−1y=80
More problems from Find the vertex of the transformed function