Question

Given the piece wise function show below, select all that are true​

Answer 1

Option (C) and (D)

Explanation:

Given piecewise function is,

f(x) = 2x, x < 1

5, x = 1

`x^(2)`, x > 1

Option (A),

x = 5 means x > 1

So the function will be,

f(x) =
`x^(2)`

f(5) = (5)²

= 25

Therefore, f(5) = 1 is not correct.

Option (B),

x = -2 means x < 1

f(x) = 2x will be applicable.

f(-2) = 2(-2) = -4

Therefore, f(-2) = 4 is not correct.

Option (C)

For x = 1,

f(1) = 5

Therefore, f(1) = 5 is the correct option.

Option (D)

x = 2 means x > 1 and the function defined will be,

f(x) = x²

f(2) = 2²

= 4

Therefore, f(2) = 4 will be the correct option.

Options (C) and (D) will be the answer.