A Free Tutoring Service: Preparing For the Future

                       A Federal and State of California Nonprofit Corporation

Lesson Review and Activities:  Jan 22-29, 2001 

                        Cleophas "Mike" McAlpin................ Chief Tutor

E-Mail (confidential) send to : mikecmac@valueweb.net

                                        Final Examination Time---9^th Grade Algebra

                                                           A Review

 Part A.........Graphing Straight Lines:

 Write the formula for the slope-intercept of a straight line.  Y =____________________

  Straight-line equations are shown below:

  (1)  Y=2x + 3       (2) Y= 2/3 x  - 2   (3)   Y= - 4/5 x + 3   (4) 2y- 3 + 4x =  0

What is the slope of each line?

What is the “Y” intercept?

Plot the lines on graph paper.

Check the accuracy of your line by using the Graphing Scientific Calculator

Part B..........Graphing Parabolas:

Parabolic Equations are shown below:

(1) Y = 3x² + 3                (2) Y =  x² – 4             (3)  Y = 4/5 x²

Graph the parabolas.

What is the focal point of each?

Check the accuracy of your graph by using the Graphing Scientific Calculator.