Name: ______Date: ______Period: ____

Review Test 6 – Parameter Changes

1. Graph the line .

2. Write the equation of the line if the slope

is multiplied by -4 and the y-intercept

remains the same.

______

3. Graph the new line and compare the two lines?

______

______

4. Graph the line .

5. Write the equation of the line if the slope

is multiplied by -1/3 and the y-intercept

translated up 2 units.

______

6. Graph the new line and compare the two lines?

______

______

7. Write the equation of a line in slope-intercept form that is parallel
and goes through the point (4,5).
What’s the new slope? ___
What’s the new y-intercept?___ / 8. Write the equation of a line in slope-intercept form that is perpendicular and goes through the point (4,5).
What’s the new slope? ___
What’s the new y-intercept?___
9. Write the equation of a line in slope-intercept form that is parallel
and goes through the point (-5,6).
What’s the new slope? ___
What’s the new y-intercept?___ / 10. Write the equation of a line in slope-intercept form that is perpendicular and goes through the point (-5,6).
What’s the new slope? ___
What’s the new y-intercept?___
11. Write the equation of a line in slope-intercept form that is parallel
and goes through the point (-4,4).
What’s the new slope? ___
What’s the new y-intercept?___ / 12. Write the equation of a line in slope-intercept form that is perpendicular
and goes through the point (-4,4).
What’s the new slope? ___
What’s the new y-intercept?___

13. Using the graph to the right, write the

equation of the line in slope intercept form.

______

14. Write the equation of a line that

is perpendicular to the graph

and has a y-intercept of 1

______

15. Write the equation of a line that

is parallel to the graph

and has a y-intercept of 1

______

18. Put these equations in order from less steep to most steep.

y = x + 2

y = 2x + 2

y = -¼ x + 2

23. Alan can spend no more than $12.00 on party supplies. Plates cost $3.00 per package and napkins cost $2.00 a package. Use x to represent plates & y to represent napkins. Sketch a graph & label the axes.

Write the inequalityin slope-intercept form ______

Why do we only need to plot Quadrant 1 for this graph?______

Domain of the line: ______Range of the line: ______

What does the independent variable represent? ______

What does the dependent variable represent? ______

Do the napkins depend on the plates? ______

Could we switch the x & y variables? ______

What is the x-intercept?______

What does that represent in relation to this problem? ______

What is the y-intercept?______

What does that represent in relation to this problem?______

Are the following points solutions to the problem?

a. (2,3) ______b. (1,7)______c. (0,0)______d. (0,6)______

What does the point (0,6) mean in regards to this problem?______