Idont get the work i need finding the answers

Which of the following is correct interpretation of the expression -4+13

If you apply the below transformations to the square root parent function, f(x) = vx, what is the equation of the new function? • shift 12 units right. • shift seven units down.

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?