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Day 3 of Mixing. 1. A quadratic function is given. f ( x ) = 3 x 2 − x + 6 What is f (2)? F 40 H 16 G 28 J 4. 2. 3. A rectangle has a length of 2 x + 1 and a width of 5 x − 4. Which expression best describes the area of the rectangle? F 7 x − 3 H 10 x 2 − 3 x − 4
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1. A quadratic function is given. f(x) = 3x2 − x+ 6 What isf(2)? F 40H16 G 28J4
3. A rectangle has a length of 2x + 1 and a width of 5x − 4. Which expression best describes the area of the rectangle? F 7x − 3 H 10x2− 3x − 4 G 14x − 6 J 10x2+ 13x − 4
8. Troy borrowed money from his father so that he could buy a used car. The table shows the remaining balance, b, of Troy’s loan after each payment. Which function can be used to describe this relationship? A b= 3910 + 225p B b= 4135 − 225p C b= 2785 + 225p D b= 3685 − 225p
10. Which of the following are the domain and range for the graph shown below? A 0 ≤ x ≤ 4 0 ≤ y < 36 B 0 ≤ x ≤ 36 0.5 ≤ y ≤ 3.5 C 0.5 < x < 3.5 0 < y < 36 D 0.5 ≤ x ≤ 3.5 0 ≤ y≤ 36
11. Which situation could this graph best represent? A A boy ran for 10 minutes, rested on a bench for 15minutes, and then ran for 10 more minutes. B A boy ran for 10 minutes, walked for 15 minutes, and then ran for 10 more minutes. C A boy ran for 10 minutes, rested on a bench for 15 minutes, and then walked for 10 more minutes. D A boy walked for 10 minutes, ran for 15 minutes, and then walked for 10 more minutes.
12. Matt is a speed skater. His coach recorded the following data during a timed practice period. If Matt continues to skate at the rate shown in the table, what is the approximate distance in meters he will skate in 25 seconds? A 250m B 175 m C 150 m D 278 m