Algebra I –Quiz
Math 1 Name _______________________
Unit 2 - Review Date__________ Period_________
1. Determine whether a scatter plot of the data for the following might show a positive, a negative, or no association. If it has a correlations, is it also a causation?
a. weight vs. hours of exercise b. birth date vs. ring size
c. temperature vs. ice cream sales d. age of a tree vs. number of rings
e. height vs. intelligence f. water level of a water bottle vs.
number of sips taken
2. The table below shows the ideal weight for a man of the given height.
|Height (inches) |66 |68 |70 |72 |74 |76 |78 |
|Weight (lbs) |143 |153 |164 |171 |183 |198 |206 |
a. Use the calculator to find the line of best fit.
b. Find r and interpret its meaning.
c. Predict the ideal weight of a man who is 71 inches tall.
d. Predict the height of a man whose ideal weight is 215 pounds.
e. What is the residual for a man who is 74 inches tall?
f. Explain the meaning of the slope.
3. The table below shows the years of experience for 8 encyclopedia sales people and the amount of sales/month.
|Years of |6 |
|Experienc| |
|e | |
|-1 |2.5 |
|0 |5 |
|1 |10 |
|2 |20 |
|3 |40 |
|X |Y |
|-1 |-5 |
|0 |-2 |
|1 |1 |
|2 |4 |
|3 |7 |
|X |Y |
|-3 |4 |
|-2 |1 |
|-1 |0 |
|0 |1 |
|1 |4 |
|X |Y |
|0 |0.5 |
|1 |5 |
|2 |50 |
|3 |500 |
|4 |5000 |
6. 7. 8. 9.
Find the slope of the line that passes through each pair of points.
1. (3, 2), (5, 6) 2. (-4, 4), (2, -5) 3. (-5, 0.5), (-5, 3) 4. (3, 4), (-3, 4)
Graph each line using y = mx + b. State the slope and y-intercept for each equation.
10. 2x + y = -2 11. 5x + 3y = 15 12. -3x ( 4y = 16
m= m= m=
b= b= b=
13. 4y = 2x 14. y = 4 15. 2y ( 6 = 3x
m= m= m=
b= b= b=
-----------------------
[pic]
[pic]
[pic]
[pic]
[pic]
[pic]
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related searches
- who am i quiz answers
- quiz guess where i live
- how old am i quiz for kids
- who do i look like quiz buzzfeed
- quiz when will i find love
- who am i quiz questions
- will i find love quiz for girls
- do i like him quiz for girls
- what should i do quiz for kids
- who do i like quiz girls
- who am i quiz free
- am i a good person quiz buzzfeed