Final answer:
To evaluate the function f(x)=5x²+3x for a given value of x, substitute that value into the function and perform the calculations.
Step-by-step explanation:
To evaluate the function f(x)=5x²+3x for a given value of x, we simply substitute that value into the function and perform the calculations. For example, if we want to evaluate the function at x = 2, we would substitute 2 into the function:
f(2) = 5(2)² + 3(2)
= 5(4) + 6
= 20 + 6
= 26
So, when x = 2, f(x) = 26. By following the same process, you can evaluate the function for any specified value of x.