Angle Relationships
Draw an acute and obtuse angle. LABEL THEM!
less than 90 = acute
greater than 90 = obtuse
Solve the following equation:
x + 8 = - 63
x = -71
What is an expression?
An equation before it is solved. Without the equal sign.
Label an x and y axis on a graph
Base is x axis
Height is y axis
What did the tree say when it couldn't solve the puzzle?
I'm stumped!
Use your protractor to draw a right angle
90 degrees
Solve the following equation:
-4x = - 48
x = 12
When does an inequality symbol switch directions? Why?
When multiplied or divided by a negative sign.
Because a negative sign means the opposite, we need the opposite inequality symbol.
Is the Dance Fundraiser graph on the board a proportional relationship? Explain your answer.
Yes!
The graph passes through the point (0,0) and is a straight line.
Describe the location of p + q on the number line.
Between zero and p
Use the angles on the board to solve for x:
1: 30
2: 3x
x = 20
Solve the following equation:
3x - 12 = 36
x = 16
Write an expression equivalent to the following:
-7- (-6 + 15)
-7 + 6 - 15
answers may vary
What does the point (2,3) represent on the graph?
2 tickets cost $3
Select the TWO expressions that have a value that is less than zero.
a) 80-32
b) -19+22
c) (-9)(-4.5)(-2.6)
d) -687 / (-8)
e) -486 / 24
c) (-9)(-4.5)(-2.6)
e) -486 / 24
Use the angles on the board to solve for x:
a: 142
b: x
x = 38
-8(3x - 4) = -88
x = 5
Celia bought 60 coins to play games at the arcade. Each game costs 3 coins. Celia has played x games so far. Write an expression that models the number of coins Celia has left.
60 - 3x
How much does 1 hot dog cost?
$1.50
After a 12% sales tax was added, Ms. Olinger's dinner came to a total of $86. Write an equation that could be solved in order to determine p, the price of dinner before the sales tax.
p + 0.12p = 86
or
1.12p = 86
Use the angles on the board to solve for x:
a: 5( x + 3)
c: 45
x = 6
-4(3x - 12) = - 24
x = 6
What are two possible solutions to the following inequality:
1/3x + 8 < 23
x < 5
Any numbers less than 5 are correct
Write an equation that models the graphed relationship.
y = 1.5x
A bricklayer used 1/3 of a pallet of bricks to complete 3/5 of a wall. When the wall is complete, how many total pallets of bricks will be used?
5/9 of a pallet of bricks