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Home > PC > Chapter 8 > Lesson 8.1.4 > Problem 8-61


Michelle started walking at ft/s and steadily increased her speed so that she was walking ft/s after seconds.

  1. Sketch a straight-line graph showing Michelle’s velocity as a function of time.

    First quadrant, x axis labeled time, seconds, scaled in fifties from 0 to 300, y axis labeled velocity, feet per second, unscaled, ray starting on the y-axis at the third grid, arrow going up & right up 3 grids and at x = 300.

  2. Write the equation of this line.

    Find the slope of the line and the y-intercept. Write the equation in form.

  3. Show that Michelle walked feet in minute and feet in minutes.

    Find the area under the curve after minute and then after minutes.


  4. How far did Michelle walk in seconds for ?