Ch A/1 Test Review

Directions:1. Work with your partner.2. One person from one side of the room will randomly be chosen to respond.3. If your answer is correct, your side of the room gets a point. 4. If your answer is incorrect, the other side of the room gets a chance to steal

the point.5. All answers must be in simplified/exact form unless otherwise stated. 6. Winning side gets… you’ll have to wait and find out!

#1) The intercepts of are…?

2 4 21y x x

(3, 0), (-7, 0), (0, -21)

#2) Solve the equation: 3 3 1 2 13x

{2, -4/3}

#3) Solve the inequality: 3 1 10x

113 or

3x x

#4) Find an equation for the line through (2, -4) and parallel to 3 7 18x y

3 3 344 2 or

7 7 7y x y x

#5) Find an equation for the line through (-3, 1) and perpendicular to

8 3 14x y

3 3 171 3 or

8 8 8y x y x

#6) Determine algebraically whether the function is symmetric with respect to the x-axis, the y-axis, the origin, or none of these: 4 22 1y x x

y axis

#7) Find the center and the radius of the graph of 2 2 2 4 4 0x y x y

center at (1, 2)

radius 3

#8) Find the standard form of the equation of a circle with diameter endpoints at (5, -2) & (-3, 2).

2 21 0 20x y

#9) Solve the equation: 9 8

42 5x

45

56x

#10) Solve the equation: 218 3 10x x

5 2,

6 3x x

#11) Solve the equation: 2 1 5 3x x

5, 41x x

#12) Use your calculator to approximate the real solutions, if any, of the equation. Round answer(s) to 2 decimal places: 4 2 4 0x x

1.14, 1.64x x

#13) Use the quadratic formula to solve the equation: 210 6 1x x

3 19

10x

#14) Write an equation of a line that is horizontal and passes through the point (-3, -5).

5y

#15) Write an equation in slope-intercept form of a line that contains (-3, 4) and has the same x-intercept as

4 16y x

3 4 12x y

#16) Solve the inequality, graph the solution set, and express your answer in interval notation:

82 or

3x x

3 1 7x

8

3 2

8, or 2,

3

#16) Solve the inequality, graph the solution set, and express your answer in interval notation:

5 10x

2 24 6

3

x

5 10 5,10

More Info About the Test…• 17 questions• 5 multiple choice• 12 show your work (unless otherwise stated)

• All answers in exact/simplified form (unless otherwise stated)• Not a lot of graphing but some…• 100 points!• Come in for last min help if you need to!