Identify whether the plots of a positive trend, negative trend, or no trend.



First plot (green) - negative
Second plot (pink) - no trend
Third plot (blue) - positive
In which of these is y a linear function of x?
y=6x
y= (2x-1)/5
y= 7/x
y=x2-5x
y= (2x-1)/5
13cm
Ms. J goes to the store and buys a pack of pencils. They were originally $8, but were 25% off. How much did Ms. J spend on the pencils?
$6
Does the problem have one solution, infinite solutions, or no solutions?
A. 4x-7 = 4(x+1)
B. 7x+2 = 2(3x-5)
C. 4x+6-2x = 2(x+3)
A= no solution
B= one solution
C= infinite solutions
Ms. Smith went for a canoe ride. She stopped at an island for a snack, then paddled back to shore. Did Ms. Smith paddle faster on the way to the island or on the way back?
Faster on the way back.
Find the slope and y intercept of the following points:
X Y
0, 3
1, 7
2, 11
y=4x+3
Slope = 4
Y intercept = 3
A tree leaves a shadow of 7 feet on the ground. If you tie a string to the top of the tree and stand at the end of the shadow, your string will be 25 feet long. How tall is the tree?
24 feet
Mr. Myers used to give his students 50 pages of work each month. He decided that needed extra practice, so he increased their pages by 10%. How many pages of work do they have each month now?
55 pages
Identify which are rational and which are irrational.
sqrt 13
-6/5
sqrt 49
3/4 + 7/8
Rational:
-6/5, sqrt49, 3/4+7/8
Irrational: sqrt 13
The quadrilateral JKLM is reflected over the x-axis, then shifted two to the left. What is the new coordinates of M'?
(0, -4)
What is the y-intercept that passes through the points (2, -1) and (-3, 9)?
y intercept = 3
A cylinder has a diameter of 8 cm and a height of 3 cm. What is the volume of the cylinder, using the symbol pi ?
48 pi cm3
Two Kiser sports teams are selling tickets. The soccer team is selling them for $4 per ticket, plus an additional 10 fee. The baseball team is selling them for $5 per ticket, with a $7 fee. How many tickets must be sold for the cost to be the same from both teams?
3 tickets.
Which list is y a function of x?
A. (3, -1), (5, 5), (3, 2), (7, 9)
B. (1, 4), (3, 7), (3, 8), (5, 10)
C. (1, 4), (3, 6), (5, 8), (7, 10)
C.
Students were asked if they'd rather try snowboarding or skateboarding. Using the table, answer the questions-
How many total students were surveyed?
How many 7th graders picked skateboarding?
Of those who chose snowboarding, what fraction of them were 8th grade?
Total= 500
7th grade skateboarding = 110
8th grade snowboarding= 140/270 or 14/27
The graph of a linear function passes through points (-5, 6) and (-8, 12). Find the slope and y-intercept of the function.
The slope is -2 and the y-intercept is -4
Lines M, N, L are parallel. What is the value of x?
60*
On a grid of school, the art room is at (7,3) and the office is at (1, -5). What is the distance between the art room and the office on the grid?
The distance is 10 units.
Solve w3=64
w=4
What is the linear equation for the graph?
y= 1/2x +2
Graph the following equation
y=4x+2

A cone has a radius of 3 inches and a volume of 36 pi .
What is the height of the cone?
12 inches
Middle school students complete 3 x 107 math problems this year. If this amount is 4 times as many as last year, how many problems did they do last year? Give answer using an exponent.
75 x 105
What is the value of :
(5/7)^3xx(28/25)^2
16/35