Algebra 101
Inequality Adventures
The Quadratic Zone
Graph It Out
Slope Sleuths
100
This is the term used for a letter that represents an unknown number in an equation.
Variable
100
Solve the inequality: x+3>5
x>2
100
What is the general form of a quadratic equation?
ax2+bx+c=0
100
What is the slope of the line represented by the equation y=2x+1
2
100
What is the formula for slope given two points (x1,y1) and (x2,y2)
y2-y1
------
x2-x1
200
What is the value of x in the equation: x+5=10
x=5
200
Graph the solution to the inequality: x < 4 on a number line
200
Solve the quadratic equation: x2 = 25
x = 5 or x = -5
200
What is the y-intercept of the line y=−3x+4y
4
200
What is the slope of the line y=−5x+9
-5
300
What is the term for a number that does not change, such as 7 or -3
A Constant
300
Solve the compound inequality: −2 ≤ x+1 ≤ 3
−3 ≤ x ≤ 2
300
Factorise the quadratic expression: x2−9
(x+3)(x−3)
300
Does the graph of y=−x2+3x−2y open upwards or downwards? Draw and label the graph on the board.
Downwards
300
Find the slope of the line that passes through the points (2,3) and (4,7)
2
400
Combine the like terms in this expression: 4x2+3x+2x2-x
6x2+2x
400
If 5x − 7 < 18, what is the range of values for x
x < 5
400
Solve using the quadratic formula: x2−4x−5=0
x = 5 or x = −1
400
Identify the x-intercepts of the equation y=(x−2)(x+3)
x=2 and x=−3
400
What is the slope of the line that is perpendicular to the line y=(1/4)x−3y
-4
500
Simplify the expression: (3x+2)(x−4)
3x2−10x−8
500
Solve and graph the inequality on the board: 2x−4≥8
x≥6
500
Solve the quadratic equation by completing the square: x2+6x−7=0
x = 1 or x = −7
500
What is the equation of the line with slope 4 passing through the point (1,2)
y=4x−2
500
If the line passes through the points (−2,−5) and (3,k) and the slope is 2, what is the value of k
k=5