Unit 1 - Equations and Inequalities
Unit 2 - Graphing Lines
Unit 3 - Functions
Unit 4 - Systems of Equations
Miscellaneous
100
Solve for x;
x/-3=-6
Answer;
x=18
100
What is the slope of this line?
Answer;
Slope:
m=-1/3
100
Use the function below to find f(-3);
f(x)=10+5x
Answer;
f(-3) = -5
100
Name the three methods for solving a system of equations.
Answer;
Graphing, substitution, elimination.
100
When a system has no solution what does that mean about its graph?
A) They are the same line
B) The lines are perpendicular
C) The lines are parallel
D) The lines intersect at a point
E) None of the above
Answer;
C) The lines are parallel
200
What is the inequality that represents this graph?
Answer;
x > 2
200
Find the slope between the points (-3, 10) and (7, 5).
Answer;
(5-10)/(7-(-3))
m=-1/2
200
How would you describe the scatterplot below? (strong/weak, positive/negative)
Answer;
Strong, negative correlation
200
What is the solution to this system of equations?
Answer;
(-4,-2)
200
Is (0, -3) a solution to this inequality? Say yes or no and WHY.
Answer;
No, because the points on a dashed lines are not solutions to an inequality.
300
What is the inequality that represents this graph?
Answer;
300
Write the full equation of the line;
Answer;
y=2x-3
300
Is the following data set a function? Answer with yes or no and WHY.
(8, 4), (-2, 5), (7, 4), (1, 10)
Answer;
Yes, because each input value (x) has only one associated output value (y).
300
Write the inequality represented in this graph;
Answer;
y> -1/2x+1
300
Write the equation in point-slope form that has a slope of -2 and goes through point (-4, 8).
Answer;
y-8=-2(x+4)
400
Solve the following compound inequality;
Answer;
400
Identify the x-intercept of the following equation;
6x-12y=18
Answer;
X-intercept; (3, 0)
400
Using the function below, what does x equal if f(x) equals 5?
f(x)=9x-13
Answer;
x = 2
400
Which of the coordinates below would be a solution to this system of inequalities?
(0, 0) (1, -4) (0, 2) (1, 1) (5, -3) (3, 1)
Answer;
(5, -3) is a solution.
400
Solve;
|x|+5=3
Answer;
No solution, absolute value cannot be negative.
500
Solve for x;
-2(x+4)=3x+12
Answer;
x = -4
500
What is the equation of the line that goes through (8, -3) is perpendicular to the line
y = 4x + 5
Answer;
y = -1/4x -1
500
Find the equation that represents this data set;
Answer;
f(x)=3x+9
500
Solve the system of equations using any method;
y=-2x
-3x+5y=-39
Answer;
(3, -6)
500
Write the equation of the function below;
Answer;
y=-|x-4|-1