Michigan State University - Diagnostic Exam

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2.7

  •   Park rangers used the line from the graph below to model the growth rate of deer in a park over time. Which of the following statements is suggested by the sketch?

    PIC


    a) 2x + 25 b) x + 25 c)  2 x + 25
       
    d) y = 25x + 2 e) none of these

Solution:

The sketch appears to be a linear function with a slope of 2 and a y-intercept of 25. Thus y = 2x + 25 .

Diagnostic:

See 2.20: Linear Equations (Lines in the Plane) .

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July 15, 2008