Integers and Graphs
True or False. The opposite of every number is negative.
False. The opposite of a negative number is positive.
A point moves across a coordinate graph so that it's y-coordinate is always 2 less than its x-coordinate. The completed table below is this.
x 2 3 4 5
y 0 ? ? ?
x 2 3 4 5
y 0 1 2 3
This addition problem corresponds to the following subtraction problem: 3 - -7
3 + 7
This symbol should replace ?? to make the following equation true.
0(8) ?? 0 - 8
>
An algebraic expression for the following is this. "The cube of a certain number is equal to the product of the number and nine."
x3 = 9x
True or False. If the y-coordinate of a point is positive, then the point is above the x-axis.
True.
A function has the formula y = 3 - x. The completed table below is this.
x 0 1 2 3
y ? ? ? ?
x 0 1 2 3
y 3 2 1 0
This number should replace ? to make the following equation true. "-9 + ? = 2"
11
This symbol should replace ?? to make the following equation true.
(-708)3 ?? (-78)2
<
The value of the following expression.
(-4)3 + (-3)4
17
True or False. The product of two negative numbers is always positive.
True.
The formula for y in terms of x for this function.
x 2 3 4 5
y 0 1 2 3
y = x - 2
This symbol should replace ?? to make the following equation true.
2 + -3 ?? 2 - (-3)
<
The number that should replace ? to make the following equation true is this.
3(?) = -3
-1
The value of the following expression.
(-7)(11)(13) - 13(11)(7)
-2,002
True or False. The sum of two numbers is always more than their difference.
False. If one of the numbers are negative, then their sum can be less than their difference. (i.e. -1 and -2)
The coordinate of the point where the following lines intersect.
y = x + 4
y = 2- x
(-1, 3)
An algebraic expression for the following is this. "The difference of a certain number and three is less than two."
x - 3 < 2
The value of the following expression if x is 2 and y is -5.
11x + y
17
The value of the following expression if x is -1 and y is 8.
x2 - y
-7
True or False. If the x-coordinate of a point is negative, then the point is below the x-axis.
False. If the x-coordinate of a point is negative, then the point is to the left of the y-axis.
The function represented in this graph.
y = 2x + 2
Acute Alice and Obtuse Ollie took a test. The score was found by subtracting the number of wrong answers from the number of correct answers. Alice's score was 3. She answered 14 questions correctly. This is the number of questions that she got wrong.
9
#correct (14) - #wrong = #score (3)
#correct (14) - #score (3) = #wrong
14 - 3 = 9
The value of the following expression if x is 2 and y is -5.
-2(x + y)
6
The value of the following expression if x is -1 and y is 8.
-y / x2-8