Question

The function ƒ(x) = is translated 3 units in the positive y-direction and reflected across the y-axis. Select the correct equation for the resulting function.
Multiple choice answers in attachment image

Answer 1

Answer:

A) ƒ(x) =  + 3

Step-by-step explanation:

A. f(x)=−x+3

Explanation:

It is stated that the function f(x) is translated 3 units in the positive y-direction. This means that the function f(x) is moved 3 units upwards.

In transforming functions, a upwards vertical translation (moving the function upwards) of a units is done by: f(x) + a.

This means that in order to move f(x) 3 units upwards, we need to add 3 to the given function. This now makes our function:

f(x)=x+3

Finally, it is also stated that it is reflected across the y-axis. For reflection across the y-axis, the transformation can be done by simply multiplying -1 to x only

f(x)=−1×x+3

f(x)=−x+3

Therefore, the answer is A

Answer 2

Answer:

I think it's D but I'm not sure