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Unformatted text preview: fee) was F(x) = 2.29x + 22.50 A. We sold 90 hats that year. How much was our total bill from Signature Shirts? (Yes, they do hats, too) F(90)=2.29(90)+22.50 F(90)=206.10+22.50 F (90)=228.60 B. How many hats would we have sold had we paid Signature Shirts $301.88? 301.88=2.29(x)+22.50 301.88-22.50=2.29(x)+22.50-22.50 279.38=2.29(x) 122=x Would have sold 122 hats C. What is our slope of this function? 2.29 D. What is our y-intercept? (0,22.50) E. What does the slope represent? The amount of each hat 6. Our equation y = 2.09x + 15.50 represents our charge for hats. An estimate from a competing company, Lotsa Hats, was -2.09x + y = 13.30. A. Do you expect these lines to be parallel, perpendicular, or intersecting? Why? These lines are expected to be parallel. This is s because they have the same slope and different y-intercepts. B. Use the equations to determine if the lines are parallel. Are they? Why or why not? Y=2.09x+15.50 -2.09x+y =13.30 Y=2.09x+13.30 y-intercept (0,15.50) y-intercept (0,13.30)...
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- Spring '09