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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