Chapter 1: Q. 1 (page 40)
The slope of a vertical line is ________ ; the slope of a horizontal line is _______.
Short Answer
The slope of a vertical line is infinity; the slope of a horizontal line is zero.
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Chapter 1: Q. 1 (page 40)
The slope of a vertical line is ________ ; the slope of a horizontal line is _______.
The slope of a vertical line is infinity; the slope of a horizontal line is zero.
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Find the distance between the points .
A wooden access ramp is being built to reach a platform that sits 30 inches above the floor. The ramp drops 2 inches for every 25-inch run.
(a) Write a linear equation that relates the height y of the ramp above the floor to the horizontal distance x from the platform.
(b) Find and interpret the x-intercept of the graph of your equation.
(c) Design requirements stipulate that the maximum run be 30 feet and that the maximum slope be a drop of 1 inch for each 12 inches of run. Will this ramp meet the requirements? Explain.
(d) What slopes could be used to obtain the 30-inch rise and still meet design requirements?
Little League Baseball Refer to Problem 106. Overlay a rectangular coordinate system on a Little League baseball diamond so that the origin is at home plate, the positive
x-axis lies in the direction from home plate to first base, and the positive y-axis lies in the direction from home plate to third base.
(a) What are the coordinates of first base, second base, and third base? Use feet as the unit of measurement.
(b) If the right fielder is located at (180, 20), how far is it from there to second base?
(c) If the center fielder is located at (220, 220), how far is it from there to third base?
The slope and a point on a line are given. Use this information to locate three additional points on the line. Answers may vary.
Slope 2, Point
Plot each point. Then plot the point that is symmetric to it with respect to -
(a) the x-axis
(b) the y-axis
(c) the origin
Point (-3, -4)
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