Slope Quiz

Example Questions From the Test

• 2What is the slope of the line through the points (−1, 2) and (3, 10)?
  • The slope is 2 because the rise is 8 and the run is 4.
  • The slope is 8 because only the change in y is used.
  • The slope is 1/2 because the rise and run have been reversed.
  • The slope is −2 because the first x-coordinate is negative.
• 3A line has equation y = (1/2)x + 4. What is the slope of a line perpendicular to it?
  • A perpendicular slope of 2, the ordinary reciprocal.
  • A perpendicular slope of −2, the negative reciprocal.
  • A perpendicular slope of −1/2, formed by changing only the sign.
  • A perpendicular slope of 1/2, matching the original line.
• 4The points (1, 2) and (3, 6) lie on a line. Which additional point lies on that same line?
  • The point (4, 6), which keeps the second known y-value unchanged.
  • The point (5, 8), which increases both coordinates by 2.
  • The point (5, 10), which follows the line y = 2x.
  • The point (6, 10), which preserves a coordinate difference of 4.