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Chapter 1: Q. 3 (page 40)
A horizontal line is given by an equation of the form _______, where bis the ______.
A horizontal line is given by an equation of the form , where bis the role="math" localid="1645793126551" -intercept.
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Use slopes to show that the quadrilateral whose vertices are and is a parallelogram.
Determine the viewing window used.
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?
The relationship between Celsius (掳C) and Fahrenheit (掳F) degrees of measuring temperature is linear. Find a linear equation relating 掳C and 掳F if 0掳C corresponds to 32掳F and 100掳C corresponds to 212掳F. Use the equation to find the Celsius measure of 70掳F.
Tell whether the given points are on the graph of the equation.
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