On a certain date, the price of silver was $30 per ounce. The graph below shows how the total cost of the silver depends on the amount purchased. Each of the following sets of numbers represents dollars. Which set of numbers is most appropriate to label the six tick marks along the vertical axis (cost)?

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.

The equation of line wx is y=2x-5. write an equation of a line perpendicular to line wx in slopeintercept form the contains points (-1,-2)

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?