Question

Decidether the given x value is a zero of the function.e wh"Decide whether the given x value is a zero of the function.

f(x)=x ³+3x²-5x+8,x=4
a. None of the above
b. Yes, because substituting the value does balance the equation.
c. No, because there is more than one zero.
d. No, because when substituting x=4 into the equation,




.

Answer 1

No, because when substituting x=4 into the equation, the resulting value is not zero.

Step-by-step explanation:

To determine whether the given x value is a zero of the function f(x)=x³+3x²-5x+8 when x=4, we substitute the value of x into the function:

f(4) = (4)³+3(4)²-5(4)+8 = 64+48-20+8 = 100

Since f(4) is not equal to 0, the given x value of 4 is not a zero of the function.