Expressions & Equations
What is the slope and y intercept for the equation below?
y = -2/3x + 5.5
m = -2/3
b = +5.5
Does the ordered pair represent a function a function?
Must correctly explain why or why not
(2, 3), (3, 4), (4, 5), (3, 6), (5, 7), (6, 8)
No, the Input of 3 has 2 different outputs
What are the angle measures of an equilateral triangle?
60o
What point is the solution to the system of Equations
y=2x + 2
y=6x + 2
(0 , 2)
What is the cube root of 64?
4
Create an equation for the perimeter of a garden whose length is 2 feet longer than 3 times its width and has a perimeter of 30 feet
w + w +3w+2 + 3w+2 = 30 or
8w + 4 = 30
Name all Intervals the Graph is Increasing
(Slide 1)
-7<x<-1
1<x<3
The top of a triangle is at (3, -2) on a coordinate plane. The triangle is reflected over the y axis then translted 5 units up and 1 to the left. What point is the top of the triangle at after the transformations
(-4, 3)
What is solution to the systems:
2x-3y=-1
y=x-1
(4,3)
What is the formula to find the slope of a line?
m=Rise/Run
Solve this equation for x
1/2(5 - 7x)= 8 - (4.5x+ 6)
x = -2
Use the verical line test to see if this graph is a function.(slide 3)
No
A ladder is that is leaning against a wall 6 feet away is 10 feet long. How high up the wall will the ladder reach?
8 feet
How many solutions do 2 lines with the same slope and different y intercepts have?
No Solutions
2 angles are supplementary, the first angle is 65o and the second angle is (6x-5)o. What is the value of x?
x=20o
Sinplify the Expression:
2(x+4) - 6x + 8 - (6x -10) + 4x - 4 + 12x
6x + 22
Cell phone store A charges f(x)=25x +100 for the new i-phone's monthly service. Store charges y=35x. -Which store is the better price for 1 year of service?
-How much will you save after 1 year with the better deal?
Store A is cheaper.
You will save $20 after one year
The sum of the measures of the angles in the triangle is 180°. What is the measure of each angle? Write and solve an equation. (Slide 4)
x=45o
Find the solution for the system of equations
2x+8y = 6
-5x-20y= -15
Infinite Solutions
The origional cost of a computer is $350. The computer is discounted 20% with a 6% sales tax on the discounted price. What is the final cost of the computer?
$296.80
Elsie is planting a rectangular section of grass. The length is 6x - 15 and the width is x. If the perimeter of the rectangle is 96 feet, what are the length and width of the rectangular section?
Length = 39 ft
Width = 9 ft
Name 3 of the 5 different representations of a function.
1. Graph 2.Equation 3.Ordered Pairs 4.Table 5.Verbal
Micah left his house and walked through the park northbound for 1200 yards and then turned directly east and walked 500 yards. If he plans on walking on a straight line back to his house how many more yards will he have to walk?
1300 yards
Give the correct equation of both lines and the correct solution.(Slide 2)
y=-3x+6
y=2x+1
Solution: (1,3)
Ken is 2 more than three times his younger brothers age in years. His brother is 6. His aunt is 2 years less than twice Ken's age. How old is Ken's aunt?
38