Simplifying Expressions
Simplify the expression: -8 × 4y
-32y
-5 + (-3) - 11
-19
Find the average of this set of data: 12, 2, 5, 7, 4
30/5 = 6
The translation of (x, y) is (x-2, y+7).
If A = (2, 5) and B = (-3, 4), what is A' and B'?
A' = (0, 12)
B' = (-5, 11)
List all the integers that make the following double inequality true.
-7 < x < -1
-6, -5, -4, -3, -2
Simplify the expression: -7g(-6j)
42gj
-11-(-5) + 7
1
Let a=4 b=2 c=6
Evaluate a - b - c
-4
The ordered pair A = (7, -3) is reflected over the x-axis. What is A'?
A' = (7, 3)
The temperature increased by 16 degrees over a 4 hour period of time. What was the constant hourly increase in temperature?
4 degrees per hour
Simplify the expression: -5(-e)(-8)
-40e
| -20 | + | 11-6 |
25
Find the average of this set of these temperatures: -14, -12, 7, 9, -2, -1, -1
-14/7 = -2
What is the difference between a translation and a reflection?
A translation is a "slide." (When you move the figure or point on the coordinate plane).
A reflection is a mirror image of the figure or point over the x or y axis.
Name that property:
5 + (- 5) = 0
Property of Opposites
OR Additive Inverse Property
Simplify the expression: -5x(-g)(6k)(-1)
-30gk
8-(-4)+(-10)
Let x=7 y=3 z=-5
Evaluate (-y + -12) ÷ (x + y)
-15/10 = -1.5
The ordered pairs C = (3, -1) and A = (-5, 2) are reflected over the y axis. What is C' and A'?
C' = (-3, -1)
A' = (5, 2)
Find the sum of all the natural numbers that make the following double inequality true.
-2 < x < 6
Integers: 1, 2, 3, 4, 5
Sum: 15
Simplify the expression: 13x(-k)(-3y)
39ky
| 2 + 7 | - | -8 | + (5 x 1)
6
Let a=4, b=7, c=-1, d=-4.
Find the average of this set of data:
-a, a+b, b+1, c, -c, c+d
Data: -4, 11, 8, -1, 1, -5
Average: 10/5 = 2
The ordered pair K = (5, -7) is translated on a coordinate plane with the translation rule (x+-3, y+-1). What is K'? Describe the translation in words.
K'= (2, -8)
Slide the coordinate left 3 and down 1.
Let y=4
- | -7 - y - 11 | - |-5x2| + 2y
- 22 - 10 + 8
-24