Answer -3x-9
Step-by-step explanation:
To reflect the function across the y-axis, you have to put a negative in front of the x. This is because when reflecting over the y-axis, you're making all of your x coordinates the opposite sign. To move the function down 5, you have to add -5 to the equation which will make the -4 to -9. This is because to translate the equation up or down, you either add or subtract the amount directly from the equation.
