4-1 Graphing Equations In Slope-Intercept Form Worksheet - Cognero Page 3

ANSWER:

y = − x + 4

4-1 Graphing Equations in Slope-Intercept Form

34.

ANSWER:

y = − x − 2

37. MANATEES In 1991, 1267 manatees inhabited Florida’s waters. The manatee population has increased at a rate

of 123 manatees per year.

a. Write an equation for the manatee population, P, t years since 1991.

b. Graph this equation.

c. In 2006, the manatee was removed from Florida’s endangered species list. What was the manatee population in

2006?

ANSWER:

a. P = 1267 + 123t

c. 3112 manatees

50. TRAVEL A rental company charges $8 per hour for a mountain bike plus a $5 fee for a helmet.

a. Write an equation in slope-intercept form for the total rental cost C for a helmet and a bicycle for t hours.

b. Graph the equation.

c. What would the cost be for two helmets and 2 bicycles for 8 hours?

ANSWER:

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a. C = 8t + 5

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