Graph lines #13-16 on the same grid:

13) Draw a line whose slope is NOT zero, undefined, -1 or 1.

- • Label the line ‘A’ and label two points on this line with their x- and y-coordinates (x,y).
- • Write the equation for this line in STANDARD FORM.

14) Draw another line that is PERPENDICULAR to your line A.

- • Label the line ‘B’ and label two points on this line with their x- and y-coordinates (x,y).
- • Write the equation for this line in POINT-SLOPE FORM.

15) Draw another line that is parallel to your line B.

• Label the line ‘C’ and label two points on this line with their x- and y- coordinates (x,y).

- • Write the equation for this line in SLOPE-INTERCEPT FORM.

16) Draw one more line that is PERPENDICULAR to your line C.

- • Label the line ‘D’ and label two points on this line with their x- and y-coordinates (x,y).
- • Write the equation for this line in whatever form you choose.

17) What shape is created by the intersections of the four lines you drew?

How could you prove it?

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Graph the following five lines on the same grid (different grid than #13-16).

Label each line with its linear equation.

18) y = 5

19) y = 3x + 8

20) The line through (1,5) and (2,2)

21) 3x -4y = -8

22) The line with slope -3/4 that passes through the point (-4,5)

23) What shape is formed by this combination of lines?

24) Word problem

To avoid air turbulence, a plane climbs from an altitude of 20,700 feet to a higher altitude at the rate of 325 feet per minute. Write a function that describes the altitude, *y*, of the plane *x* minutes after it begins its climb to a higher altitude.

Then find the altitude of the plane for *x* = 5.

25) Ask and answer your own question that shows me you know something else about functions and linear equations that was not already covered in this quiz.

Subject | Mathematics |

Due By (Pacific Time) | 09/16/2013 12:00 am |

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