The functions are determined by substituting the value of x with the numbers.
a. 3 and 5
b. 7 and 3
c. 9 and 2
<h3>What is a function?</h3>
Function is an expression, rule, or law that defines a relationship between one variable which is the independent variable and another variable called the dependent variable.
From the information given, we have:
- f(x) = { 2x + 7
- f(x) = { 3 - x
a. f(-2).
Substitute the value of x as -2 for the expressions;
f(-2) = 2 ( -2) + 7 = -4 + 7 = 3
f(-2) = 3 - (-2) = 3 + 2 = 5
b. f(0)
Substitute the value of x as 0 for the expressions;
f(0) = 2 (0) + 7 = 0 + 7 = 7
f(0) = 3 - 0 = 3
c. f(1)
Substitute the value of x as 1 for the expressions;
f(1) = 2(1) + 7 = 2 + 7 = 9
f(1) = 3 - 1 = 2
Thus, the functions are determined by substituting the value of x with the numbers.
Learn more about functions here:
brainly.com/question/2328150
#SPJ1
