Quadratics Worksheet Algebra 1 - Unit 8 Page 4

17. The length of a rectangular garden is 4 yards more than its width. The area of the garden is 60 square

yards. Find the dimensions of the garden.

Part IV: Each correct answer will receive 4 credits.

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18. Write the equation

in vertex form.

19. Find the x-intercepts, vertex, and axis of symmetry to the of the function y = -x

- 6x - 8 without

graphing

20. The average daily high temperature for each month in Ithaca, New York, is given by the function

( )

(

)

= -2 m - 7

+ 85 , where m is the number of the month (January = 1, February = 2, etc.) and T is

T m

the average daily high temperature.

a) What is the average temperature in January?

b) What is the maximum temperature and in which month does it occur?

( )

= 53 in the context of the problem. Be sure to include units.

c) Interpret: T 3

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