If f(x) = 3x – 10, find the element of the domain associated with each of the following functional values:
a) 2
b) 8
plug in the value for x and solve
3(2)-10
6-10
=-4
capish?
To find the elements of the domain associated with each functional value, we need to solve the given equation for x.
Given f(x) = 3x - 10, we can substitute the given functional values and solve for x:
a) For f(x) = 2:
2 = 3x - 10
Add 10 to both sides of the equation:
2 + 10 = 3x - 10 + 10
12 = 3x
Divide both sides by 3:
12/3 = 3x/3
4 = x
Therefore, when f(x) = 2, the value of x is 4.
b) For f(x) = 8:
8 = 3x - 10
Add 10 to both sides of the equation:
8 + 10 = 3x - 10 + 10
18 = 3x
Divide both sides by 3:
18/3 = 3x/3
6 = x
Therefore, when f(x) = 8, the value of x is 6.