NEED HELP ASAP!!

can someone please answer these 3 questions for me

For the equation below, x is the input and y is the output. y = -4x + 3 if the input is -8, then the output is

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

True or false look at the picture pls : /