Question

Write an equation of the line that passes through (8, 3) and (4, 3).


A. y = 3
B. y = 4x + 3
C. y = 4
D. y = 3x

Answer 1

what would be the slope of that line?

Answer 2

4?

Answer 3

well, how did you get 4?

Answer 4

The difference when you do 8-3= 4 and 3-3=0

Answer 5

anyhow, the slope of a line is rise over run, that is
$$
\cfrac{y_2-y_1}{x_2-x_1}
$$

Answer 6

I don't get how to do tht..

Answer 7

sorry, I'm a bit lagged :/

Answer 8

well, you have 2 points, (8,3) and (4,3), those are your coordinates, thus

(8,3) and (4,3)
\(x_1,y_1\) and \(x_2,y_2\)

Answer 9

Okay.
I that part

Answer 10

so, what does that give you for the slope?

Answer 11

3?

Answer 12

$$
\cfrac{3-3}{8-4} \implies ?
$$