Answer:
The value of the function f(x) = 4x² + 19 is 119.
Explanation:
To evaluate a function, we substitute the given value into the function and simplify the expression to find the corresponding output or result.
To find the value of the function f(x) = 4x² + 19 when x = -5, we substitute -5 into the function and simplify.
f(-5) = 4(-5)² + 19
= 4(25) + 19
= 100 + 19
= 119
The concept of evaluating a function involves substituting a given value into the function and calculating the corresponding output.
In this case, we substituted -5 into the function f(x) = 4x² + 19 to find that f(-5) = 119.
Therefore,
When x = -5, the value of the function f(x) = 4x² + 19 is 119.