Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
100
Is the given relation a function? Give its domain and range. {(3, 2), (5, -2), (4, 1), (6, 8)}
Function: Yes Domain: {3, 5, 4, 6} Range: {2, -2, 1, 8}
100
the intersection of a parabola with its axis of symmetry
vertex
100
Give the formulas for the slope-intercept and point-slope forms of a linear equation
y=mx + b y-y1=m(x-x1)
100
Find 6A when A= [3 4 1] [2 1 7]
What is [18 24 6 ] [12 6 42]
100
Solve the system using the method of your choice. y=x+3 y=2x-4
x=7
200
If y = 6x - 18, write the formula in mapping notation and f(x) notation.
Mapping: f:x--> 6x - 18 f(x) notation: f(x)= 6x - 18
200
The shape of the graph containing two branches (one in quadrant I and the other in quadrant III)
What is hyperbola?
200
Find the x-intercept of the line, 3x + 2y= 8
What is 8/3?
200
What is the identity matrix?
What is [1 0] [0 1]
200
How do you find the determinant of a 2x2 matrix?
ad-bc
300
The test that is done in order to determine whether or not a relation is a function.
What is the vertical line test?
300
Sketch two graphs of direct variation that we discussed in this chapter. Label each graph with its equation.
Sketch of y = kx and y = kx^2
300
Find the 145th term of the sequence, An = 845 - 7(n-1)
What is -163?
300
Find A-B given A= [2 3] [4 9] and B= [1 0] [3 4]
What is [1 3] [1 5]
300
What is true if the determinant of a matrix is equal to zero?
the inverse does not exist.
400
Evaluate the function y = 3x^2 - 42 when x = 4
What is 6?
400
Sketch two graphs of inverse variation that we discussed in this chapter. Label each graph with its equation.
Sketch a graph of y = k/x and y = k/x^2
400
The first five terms of a sequence are 4, 9, 14, 19, 24. Write a recursive formula for the sequence.
What is A1=4 An=An-1 + 5, n>=2
400
In order for two matrices to be added or subtracted from each other, what has to be true?
The dimension have to be the same.
400
solve the system using the method of your choice. 2x+3y=4 4x-y=8
x= 8 y= -4
500
Solve a^2 + b^2 = c^2 for b.
What is b= square root (c^2-a^2)
500
What is a discrete set?
when x-values are only integers; x-values cannot be fractions or decimals
500
Write the equation in slope-intercept form, 6x + 7y = 9
What is y = (-6/7)x + 9/7
500
Multiply the matrices, [3 4][5 1] x [4 5 8][1 2 3]
What is [16 23 36] [21 27 43]
500
Solve the system using the method of your choice. 3x+7y=2 y=x+1
x = -1/2 y= 1/2
M
e
n
u