Question

The points (-3,1), (3,3), and (x,5) are collinear. find the value of x?

Answer 1

What is the slope of the line connecting (-3,1) and (3,3)?

Answer 2

(I am asking you to figure that out)

Answer 3

the slope is 1 over 3.

Answer 4

Great. How about the line connecting (3,3) and (x,5), in terms of x?

Answer 5

um i dont know /;

Answer 6

Use the same method as you did before...just treat \(x\) as if it were a number.

Answer 7

\[\text{slope}=\frac{\text{rise}}{\text{run}}=\cdots\]

Answer 8

Give it your best guess.

Answer 9

is it the answer greater then 1?

Answer 10

and less than 9?

Answer 11

It shouldn't be a number...it should be an expression in terms of \(x\).

Answer 12

x is either 1,2,9,5 or 4.