Question

A line passes through (4, 5) and (8, 9). Which equation best represents the line?

A. y = x + 1
B.y = 1
C.y = 2x + 1
D. y = 5x + 8

Answer 1

do you know how to find slope

Answer 2

NO

Answer 3

slope = y2-y1/x2 -x1

Answer 4

every coordinate has (x, y) values so the first point will be (x1, y1) and the second (x2, y2)

Answer 5

when you plug it in what do you get?

Answer 6

okay shes offline...

slope = y2 - y1/ x2 - x1 = \[\frac{ 9-5 }{ 8-4 }\]\[\frac{ 4 }{ 4 }\]

Answer 7

the slope is 1 so just look for the equation with a slope of 1

Answer 8

A is the answer

Answer 9

why wouldn't it be B

Answer 10

becuase there is no slope in b. The equation of a line is y=mx+b where m is the slope and b is the y intercept. b just shows the y intercept so it would be a horizontal line with no slope

Answer 11

does that make sense?

Answer 12

yes thank you

Answer 13

your welcome :)

Answer 14

can you help me with another one

Answer 15

sure just tag me in it :)