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Algebra 1 Unit 4 Review. Algebra 1 – Unit 4 mid-unit Review 1) x y 5 5 -5 A B C D.

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Presentation on theme: "Algebra 1 Unit 4 Review. Algebra 1 – Unit 4 mid-unit Review 1) x y 5 5 -5 A B C D."— Presentation transcript:

1 Algebra 1 Unit 4 Review

2 Algebra 1 – Unit 4 mid-unit Review 1) x y A B C D

3 ANSWER Algebra 1 – Unit 4 mid-unit Review 1) x y A B C D ACDBACDB

4 Algebra 1 – Unit 4 mid-unit Review 2) x y A B C D xy xy xy xy

5 ANSWER Algebra 1 – Unit 4 mid-unit Review 2) x y A B C D xy xy xy xy

6 Algebra 1 – Unit 4 mid-unit Review 3) x y A B C D

7 ANSWER Algebra 1 – Unit 4 mid-unit Review 3) x y A B C D

8 a)Write an equation of a line parallel to line B. b)Write an equation of a line perpendicular to line D. Algebra 1 – Unit 4 mid-unit Review 4) x y A B C D

9 ANSWER Algebra 1 – Unit 4 mid-unit Review a)Write an equation of a line parallel to line B. b)Write an equation of a line perpendicular to line D. 4) x y A B C D

10 The points (-2,-1) and (2,-3) lie on a line. Write an equation of this line in point-slope form. Algebra 1 – Unit 4 mid-unit Review 5)

11 ANSWER Algebra 1 – Unit 4 mid-unit Review The points (-2,-1) and (2,-3) lie on a line. Write an equation of this line in point-slope form. 5)

12 The points (-2,-1) and (2,-3) lie on a line. Write an equation of this line in slope-intercept form. Algebra 1 – Unit 4 mid-unit Review 6)

13 ANSWER Algebra 1 – Unit 4 mid-unit Review The points (-2,-1) and (2,-3) lie on a line. Write an equation of this line in slope-intercept form. 6)

14 A zookeeper leaves a 50 lb bag of grain for an emu. The emu is always hungry and will eat 2 lbs of grain per hour. a)What is the independent variable? b)What is the dependent variable? Algebra 1 – Unit 4 mid-unit Review 7)

15 ANSWER Algebra 1 – Unit 4 mid-unit Review 7) A zookeeper leaves a 50 lb bag of grain for an emu. The emu is always hungry and will eat 2 lbs of grain per hour. a)What is the independent variable? b)What is the dependent variable? time (hours) Amount of remaining grain (lbs)

16 A zookeeper leaves a 50 lb bag of grain for an emu. The emu is always hungry and will eat 2 lbs of grain per hour. a)Write an equation involving x and y that represents this situation. b)When will the emu run out of grain? c)After 10 hours, how much grain will the emu have left? Algebra 1 – Unit 4 mid-unit Review 8)

17 ANSWER Algebra 1 – Unit 4 mid-unit Review A zookeeper leaves a 50 lb bag of grain for an emu. The emu is always hungry and will eat 2 lbs of grain per hour. a)Write an equation involving x and y that represents this situation. b)When will the emu run out of grain? c)After 10 hours, how much grain will the emu have left? 8) y = -2x + 50 In 25 hours 30 lbs

18 The zookeeper is bringing in a bunch of more emus for the zoo. The trailer can hold up to 1 ton of cargo (2000 lbs). A female emu weighs 50 lbs and a male emu weighs 80 lbs. a)If x is the number of female emus, then ___x represents the total weight of the females. b)If y is the number of male emus, then ___y represents the total weight of the males. c)Combine yours answers to (a) and (b) to write an equation that models this situation, using general form. Algebra 1 – Unit 4 mid-unit Review 9)

19 The zookeeper is bringing in a bunch of more emus for the zoo. The trailer can hold up to 1 ton of cargo (2000 lbs). A female emu weighs 50 lbs and a male emu weighs 80 lbs. a)If x is the number of female emus, then ___x represents the total weight of the females. b)If y is the number of male emus, then ___y represents the total weight of the males. c)Combine yours answers to (a) and (b) to write an equation that models this situation, using general form. ANSWER Algebra 1 – Unit 4 mid-unit Review 70 9) 80 70x + 80y = 2000

20 The zookeeper is bringing in a bunch of more emus for the zoo. The trailer can hold up to 1 ton of cargo (2000 lbs). A female emu weighs 50 lbs and a male emu weighs 80 lbs. a)If all of the emus are male, how many can be taken on the trailer? b)Where would this be seen on a graph of this line? c)If all of the emus are female, how many can be taken on the trailer? d)Where would this be seen on a graph of this line? Algebra 1 – Unit 4 mid-unit Review 10)

21 The zookeeper is bringing in a bunch of more emus for the zoo. The trailer can hold up to 1 ton of cargo (2000 lbs). A female emu weighs 50 lbs and a male emu weighs 80 lbs. a)If all of the emus are male, how many can be taken on the trailer? b)Where would this be seen on a graph of this line? c)If all of the emus are female, how many can be taken on the trailer? d)Where would this be seen on a graph of this line? ANSWER Algebra 1 – Unit 4 mid-unit Review 25 males could be taken 10) This would be the y-intercept: (0,25) This would be the x-intercept: (40,0) 40 females could be taken


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