Question

The function is expressed by a formula y=0.1x+5. Find the value of the function if the variable is equal to 10; 50; 120.

Answer 1

f(x) = 10:
`\large\boxed{6}`

f(x) = 50:
`\large\boxed{10}`

f(x) = 120:
`\large\boxed{17}`

Explanation:

Write out the whole function using given information

f(x) = [10, 50, or 120]

Domain/y = 0.1x + 5

Substitute the possible values for x into the domain equation and solve

f(x) = 10: 0.1(10) + 5 = 1 + 5 = 6

f(x) = 50: 0.1(50) + 5 = 5 + 5 = 10

f(x) = 120: 0.1(120) + 5 = 12 + 5 = 17

Final answers:

f(x) = 10:
`\large\boxed{6}`

f(x) = 50:
`\large\boxed{10}`

f(x) = 120:
`\large\boxed{17}`

Hope this helps :)