Algebra I - Anderson School District Five
Name __________________________________________________ Date ___________________________
Review for Linear Functions Test 2 – Algebra 1 AB
Part I. Find the slope of each line between the two points.
1. (4, 5) and (4, -2) 2.
3. (5, 7) and ( –3, 8)
Part II. Find the slope and y-intercept, then graph.
4. 2x+5y = 15 5. y = 3x - 1
m = ________ m = ________
b = ________ b = _________
Part III. Use a graphing calculator to determine the equation of the line of regression and the correlation coefficient for the following table.
[pic]
6. equation: ___________________ 7. Correlation coefficient: ____________
Part IV. Write the equation of the line, given the slope and y-intercept.
8. slope= [pic] y-intercept= ( 3 9. slope= [pic] y-intercept= 5
Part V. Write the equation of the line in point-slope form that goes through the following point with the given slope.
10. m = (3 (12, -7)
Part VI. Write the equation of the line that goes through the two points, in slope-intercept form.
11. (-2, 6) and (4, 9) 12. (1, 3) and (2, -5)
Part VII. Write the equation for the line in slope-intercept form that is parallel to the given line and passes through the given point.
13. y = -4x + 7 through (1, -12)
Part VIII. Write the equation of the line in slope intercept form that is perpendicular to the given line and contains the given point.
14. y = [pic]x + 5 through (9, 1)
Part IX. Follow the directions for each question.
15. Change y + 7= [pic]( x - 8) into:
a. Slope-intercept form: _____________
b. Standard form:____________
Part X. Determine if the following scatter plots have a Positive, Negative or No Correlation.
17. 18.
Part XI. Write the inverse function of the following functions.
19 f(x)=3x+6 20. f(x)=4x – 5
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16. The cost of summer school is $50 plus $100 per class.
a. Write an equation that illustrates this situation:
_______________________________
b. What is the cost for attending 4 classes?
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