Equations
Inequalities
Patterns from Tables
Ind./Dep. Variable and Graphs
Random :)
100
If 8x + 8 = 72, then does 3(8x + 8) = 72 * 4?
Why or why not?
False, both sides of the equation are not being multiplied by the same number.
100
Write as an inequality.
"The girl's age (a) is no more than 12 years old."
a < 12
100
What is the equation to the following?
(Hint: input = x, output = y)
y = x + 2
100
Which is usually the independent variable and dependent variable between x and y?
IV = x
DV = y
100
Which is bigger, 1/2 or 1/5 ?
1/2!
1/2 = .5
1/5 = .2
200
Find the solution.
.173 + a = 22.32
a = 22.147
200
Give me 3 possible solutions to the following:
x < 1
Anything less than 1 works!
200
What is the equation to the following?
(Hint: input = x, output = y)
y = 3x or y = x * 3
200
What are three ordered pairs from the following table?
(1, 3)
(2, 6)
(3, 9)
(4, 12)
200
What is the perimeter of the following shape?
perimeter (p) = ADD ALL SIDES
p = 495 m
300
Tell me what inverse operation you would use and find the solution.
8.2p = -32.8
Division, p = -4
300
Choose the correct inequality.
D. x > -3
300
Given the following table, what would the output (y) be if the input (x) was 30? (hint: find the equation first!)
y = x * 6 or y = 6x
so, if x = 30, then y = 180
300
What is the independent and dependent variable in the following situation?
"The amount of water given (w) and the height of the plant (h)"
IV: w
DV: h
The height of the plant DEPENDS on the water given.
300
Solve!
|-2| + |5| - |-9| =
2 + 5 - 9
7 - 9 = -2
400
h + 3 1/4 = 7 2/3
Subtract by 3 1/4.
7 2/3 - 3 1/4
7 8/12 - 3 3/12 = 4 5/12
Answer: 4 5/12
400
Write an inequality for the following. Choose any variable. :)
x < 5
400
x | y
8 | 4
9 | 12
10 | 20
11 | 28
400
The NHS students are going on a trip. 1 van can fit 5 students. How many vans will they need to fit 25 students?
Let x = students and y = vans. Fill out the table and write an equation.
x | y
5 1
__ __
__ __
__ __
25 __
y = x/5
25/5 = 5 vans needed
400
Which expression is equal to 42 + 70?
a.) 6(7 + 10)
b.) 7(7 + 10)
c.) 14(3 + 5)
d.) 21(2 + 3)
Answer: c
500
7 1/7 * w = 5/14
Change 7 1/7 to 50/7
Use the reciprocal rule!
w = 1/20
500
Write as an inequality and graph it on a number line.
"Sr. Bissan sleeps at least 5 hours (h) a night"
h > 5
(Show me your graphed inequality.)
500
Complete the table using y = -3x + 5
x | y
-1 |
0 |
3 |
5 |
x | y
-1 | 8
0 | 5
3 | -4
5 | -10
500
Yasmina makes $1.50 for every 3 drawings she sells. How much will she make if she sells 15 drawings?
Let x = number of drawings and y = money made.
Fill out the table, write an equation, and solve!
x | y
1 0.50
3 1.50
6 __
__ __
__ __
15 __
y = x/2
If she sells 15 drawings she will make $7.50.
500
Use PEMDAS to solve.
0.22 / [7.9 - (4.1 + 1.8)] =
= .02