Suppose y varies directly as x. If y = 30 when x = 8, find y when x = 4.

For what values of x is x2 + 2x = 24 true?

In the diagram of circle o, what is the measure of zabc?

Ethan is proving that the slope between any two points on a straight line is the same. he has already proved that triangles 1 and 2 are similar. drag statements and reasons to complete the proof.