Mathematics, 27.05.2020 12:58, omojay1257
You bicycle along a straight flat road with a safety light attached to one foot. Your bike moves at a speed of 15 km/hr and your foot moves in a circle of radius 20 cm centered 30 cm above the ground, making one revolution per second.
a. Find parametric equations for x and y which describe the path traced out by the light, where y is distance (in cm) above the ground and x the horizontal distance (in cm) starting position of the center of the circle around which your foot moves. Assuming the light starts 30 cm above the ground, at the front of its rotation. x(t)= , y(t)= . On a separate sheet of paper, sketch the path that your equations describe. b. How fast (in revolutions/sec) would your foot have to be rotating if an observer standing at the side of the road sees the light moving backward? Rotate at revolutions/second.
Answers: 3
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The table below represents a linear function f(x) and the equation represents a function g(x): x f(x) −1 −5 0 −1 1 3 g(x) g(x) = 2x − 7 part a: write a sentence to compare the slope of the two functions and show the steps you used to determine the slope of f(x) and g(x). (6 points) part b: which function has a greater y-intercept? justify your answer. (4 points)
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