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One/Two/Multi-steps
Slope
Standard Deviation
Direct/Inverse
SURPRISE!
100
-6=b/18
-108
100
What is the formula for slope, slope-intercept, point-slope, and standard form?
m=y2-y1/x2-x1 y=mx+b y-y1=m(x-x1) Ax+By=C
100
The scores of a basketball game were 21,42,15,23,39,10,3. Their average is 21.9. Their standard deviation is 13.34. They want to find out what their z-score would be for 20 points. And how many points are in between 0.15 and 0.5?
z=-0.142 No points fall in between 0.15 and 0.5
100
What is the difference between a direct and inverse variation?
Direct variation is when one goes up the other goes up and inverse variation is when one goes up and the other goes down.
100
The cost of cable is 10 dollars plus 5 dollars per month. Write an expression that models the information. Let m represent the months .
10+5m
200
0=4+n/5
-20
200
Determine the slope for: (-3,5) and (7,0)
-1/2
200
Find the average for the points: 65, 48, 97, 88, 6, 7 Next use the z-score for 55 which is 0.0887 to find out the standard deviation.
Average: 51.833 Standard Deviation: 35.7
200
If x varies directly with y when x=-18 and y=-9 what is the constant and the equation?
K=2 and the equation is y=2x
200
-5(3-6x)= 6(-2-12x)
1/34
300
-18-6k=6(1+3k)
-1
300
Write the point slope form of the equation of the line that has a slope of 12 and passes through the point (3,8).
y-8=12(x-3)
300
Last year the benchmark scores for the students were: 55,99,75,82,92,83,65,100 The mean of those scores was 81.4 and the standard deviation was 14.91. How many points are in between 0.235 and 0.5?
NONE
300
If y varies inversely with x where y is -3 and x is 30 what is the constant and equation?
k=-90 y=-90/x
300
Find the range if the domain is {-1,6,5} f(x)=3x+7
Range= 4,25,22
400
4m-4=4m
No solution
400
Write the slope-intercept form of the equation by doing point-slope with the points (5,-5) and (2,7).
y=-4x+15
400
These are the scores for the end of the football season for the raccoon team 75,88,94,10,61,33,0 The coach wants to find out what is the standard deviation when the average is 51.6 and the z-score for the score 20 is -0.91.
Standard deviation= 34.61
400
Marley had to take a typing test. She could type 600 words in 2 minutes. She wants to figure out how many words she can type in 5 minutes.
Marley can type 1500 words in 5 minutes.
400
Find the range is the domain is {3,-9,2} f(x)=6x+8
Range: 26, -46, 20
500
7(9+k)=84
3
500
Elizabeth was taking her algebra quiz on slope. She had to find the slope of the points (3,-5) and (2,3). She wrote the formula like this -5-3/3-2. what did she do wrong?
She mixed up the order by putting the y1 and x1 first.
500
Selena took five math quiz in one month. Her scores were 75,83,97,69,100. The average of her scores was 84.8 and the standard deviation was 12.07. Find how many numbers fit in between 0.25 and 0.5.
Only one number fits which is 83
500
The length of a violin string varies inversely as the frequency of the vibrations. The string is 14 inches long vibrates at a frequency of 450 every second. What is the frequency of a violin string that is 12-inch long.
The frequency is 525.
500
Find the range if the domain is {5,2,-6} f(x)= 7x+3
Range: 38, 17, -39