CH 5 Proportions
CH 6 Percents
CH 7 Functions
CH 8 Probability
CH 9 Graphing
100
Find the unit rate. $23.75 for 5 pounds
What is $4.75 per lb=23.75/5
100
Find 78% or 50
What is 39=0.78x50
100
What is a relation? What makes a relation a function?
What is a set of ordered pairs. A relation becomes a function when no x repeats or it passes a vertical line test.
100
A bag of animal crackers contains 5 monkeys, 4 giraffes, 6 elephants, and 3 tigers. What is the probability of picking a giraffe or elephant? Write as a fraction in simplest form. P(giraffe or elephant)=
What is 5/9 or 10/18
100
This graph shows change over time.
What is a line graph
200
On Friday, Jade washed 10 vehicals in 4 hours. The next day she washed 15 vehicals in 6 hours. Is the number of vehicals she washed proportional to the time it took her to wash them?
Yes it is proportional. The ratios are equal. 2.5 cars per hours.
200
Find the percent of change and state if it is an increase or decrease. Original: 172 New: 254
What is 48% increase=(254-172)/172
200
Create a function table for the equation and identify the domain and range. y=2x Plug in x as 1,2,3,and 4 x 2x y
What is x=1 y=2 x=2 y=4 x=3 y=6 x=4 y=8 Domain-1,2,3,4 Range-2,4,6,8
200
Find the sample space. You can use the fundamental counting principal or create a tree diagram. How many different outcomes are there when choosing from pepperoni, mushroom or cheese pizza, and water, juice, or milk?
What is 9 outcomtes=3x3
200
This graph shows the frequency of data divided into equal intervals.
What is a histogram
300
If 3 TVs weigh 240.6 pounds, how much do 9 of the same TVs weigh?
What is 721.8 lbs=(9x240.6)/3
300
Find the total cost to the nearest cent. $12 haircut with a 15% tip
What is $13.80=(0.15x12)+12
300
What is the constant rate of change for the following table? Package 5 10 15 20 Cookies 60 120 180 240
What is 12 cookies per package.
300
How many permutations are there of the letters in the word COMPUTER ?
What is 8x7x6x5x4x3x2x1=40,320
300
This graph compares parts of the data to the whole, using percents.
What is a circle graph or pie chart.
400
The scale on a map is 3 cm=7 km. Find the actual distance for the map distance of 9cm.
What is 21km=(9x7)/3
400
Find the the sale price to the nearest cent. $45 roller blades with a 20% discount.
What is $36=45-(0.20x45)
400
How do you find slope?
What is rise/run or change in y/ change in x or y=mx+b
400
A bag of marbles contains 3 red, 4 blue, and 2 yellow marbles, and 1 green marble. Once selected, a marble is not replaced. What is the probability of picking a green marble then a red marble? Write as a fraction in simplest form. P(green then red)=? Daily Double
What is 1/10 x 3/9=1/30
400
This graph shows the measures of variation for a set of data. Daily Double (must also answer this questions) What are the measures of variation?
What is a box and whisker plot. Daily Double Range, Min, Max, Median, LQ, UQ, IQR, outliers
500
A building is 24 ft tall and casts a shadow that is 9 ft long. A basketball hoop is 8ft tall. If the two triangles formed are similar, how long is the shadow of the basketball hoop?
What is 3ft=(8x9)/24
500
Find the interest earned to the nearest cent. The principal is $475, at a 5% rate, for 2 years.
What is $47.50=475x0.05x2
500
What does the graph that is directly proportional look like? Inversly proportional? Draw them!
What is straight line through the middle (0,0) and a curved line where as x gets larger y gets smaller.
500
What is the theoretical probability or rolling an even number on a number cube? In an experiment I rolled 22 evens out of a total of 40 rolls. What is the experimental probability?
What is 1/2 for the theoretical probability, because that is what should happen. What is 22/40 or 11/20 for the experimental probability, because it is what actually happened.
500
This graph shows the relationship between a set of data with two variables graphed as ordered pairs.
What is a scatter plot.