**Mathematics 120 ** (Precalculus)

Review: Examination I (Part 2)

prepared by:

Joseph Malkevitch

Mathematics Department

York College (CUNY)

Jamaica, NY 11451

email: joeyc@cunyvm.cuny.edu

web page: http://www.york.cuny.edu/~malk

1. Write down the equation of the lines through the given points and indicate the slope of the lines.

a. (2, -4) (0, -5)

b. (3, -2) (0, 6)

c. (-3, 4) (-3, 7)

d. (2, 3) (4, -7)

e. ( -1, -3) (-6, -9)

f. (2, 5) (-6, 5)

2. For each of the equations below, determine the slope of the line and draw a sketch of the line.

a. 2x - 5y = 7

b. -3y + 5x = 15

c. -y = 4x -8

d. 3x = 2y - 4

e. x = -4

f. y = -7

3. Given A = (2, -3) B= (0, 0) and C = (1, 5)

a. Find the lengths of the segments AB, BC, and CA

b. Find the equations of AB, BC, CA

4. Find the equation of a line parallel to 3x -5y = 8 going though the point

a. (0, 0)

b. (-1, 5)

c. (2, -6)