What is the rate of change of the function y=-4x+2

NEED HELP ASAP PLEASE

Hurry and answer this! circle x with a radius of 6 units and circle y with a radius of 2 units are shown which steps would prove the circles similar? translate the circles so they share a common center point, and dilate circle y by a scale factor of 4. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 4. translate the circles so they share a common center point, and dilate circle y by a scale factor of 3. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 3

Three times the sum of a number and seven is negative thirty-six. what is the number?

If sin(x) = 0 and cos(x) = 1, what is tan(x)?