Question

1. Find the slope of line passing through the points (5, 9) and (5, -2)
A. -11
B. 0
C. 11
D. undefined
2. Find the slope of the line passing through the points (-2, 9) and (5, 3).
A. -6/7
B. 4
C. -7/6
D. 1/4
3. Find the value of x so that the line passing through the points will have the given slope: (x, 6) and (10, -3) with a slope of -3/2.
A. -13
B. 4
C. 13
D. -12
4. In a linear equation, the independent variable increases at a constant rate while the dependent variable decreases at a constant rate. The slope of this line is
A. zero
B. negative
C. positive
D. undefined

Answer 1

1. D -undefined
both points have the same x co-ordinate , thus the slope is vertical and undefined

Answer 2

r u sure?

Answer 3

slope of a line is rise/run,
rise is -11
run is 0

-11/0 is Undefined

Answer 4

oh okay. Thank you for tht explanation.

Answer 5

The slope of two points (x1,y1) and (x2,y2) is given by the formula m=(y2-y1)/(x2-x1)

Plug your points into the formula and you get

m=(3-9)/(5-(-2))=(-6)/(7)

So wouldn't it be -6/7

Answer 6

so for 2. the slope from (-2,9) to (5,3) is rise over run which is -6/7 = -6/7 which is A.

Answer 7

yeah that is right

Answer 8

okay i thought so

Answer 9

can you do the others by your self ?

Answer 10

well yea i already done them i was just having you guys check it.

Answer 11

Can you help me with 3?