Adding/Subtracting Integers
Add the integers
6+(-4)
2
Solving Equations
Solve for x.
x + 3 = 7
x=4
Multiply the integers
-3(2)
-6
Independent or Dependent: this is what you can control in the experiments, this comes first, this is the cause (not the effect).
Independent Variable
True or false: the dependent variable is the result, this is the effect, it depends on something else.
True
Add the integers
-3 - 22
-25
A plant grows 2 milliliters every day. How tall will it be after 2 weeks?
28 milliliters.
Multiply the integers
3(-6)
-18
What’s the independent variable in an experiment testing how different water temperatures affect how quickly sugar dissolves?
Water temperature
For multiplication and division, if the numbers are both negative, the answer is negative
False, the answer is positive
Add the integers
-5 + (-6)
-11
Solving Equations
Solve for x.
x/3=21
x=63
Multiply the integers
-7(-15)
105
A student wants to know if wearing different shoes affects running speed. What’s the independent variable?
Shoes he wears
True or false: -9 + (-7)= 2
False -16
-12 - (-4)
-8
Write an equation about the following: You have $20 and earn $10 every week (w) to put towards savings (s).
s=10w + 20
Multiply the numbers
-16 ÷ (-2)
8
True or false: when plotting data, the independent variable goes on the x-axis and the dependent goes on the y-axis.
True
Solve and graph the solution set to the inequality:
9x < 45
x<5
-20 - (-3) + -9
-26
Solve and graph the solution set to the inequality:
16 + x > 80
x>64
Multiply the integers
(-8)(-7) ÷ 2
56
A teacher tests whether the color of paper (white, blue, yellow) affects how much students remember based on test scores. What is the dependent variable?
Test Scores
True or False: I have a Husky named Sonic.
False! His name is Shadow lol.