Question

what is the equation of the line.

Answer 1

im having trouble figuring out the answer i think the formula is y=mx+b?

Answer 2

correct

so first part is finding m (slope)

Answer 3

You can easily see what b equals becasue that is where the graph instersects the y-axis

Answer 4

yes i know that b is 1 but im need help finding the sope

Answer 5

\(\dfrac{y_2-y_1}{x_2-x_1}\)

Answer 6

that would be the formula for slope

so pick 2 points from the line

Answer 7

i can pick any points?

Answer 8

any that are on the line

Answer 9

ok -4,2 and 4,4

Answer 10

so plug them into the formula

\(\dfrac{4-2}{4-(-4)}\)

Answer 11

2/8 or 1/4 sorry my computer froze

Answer 12

correct so m = 1/4

that means your line is \(\bf{y=\dfrac{1}{4}x+1}\)

Answer 13

there is no answer choice that looks like that

Answer 14

o.o what are the choices?

Answer 15

the first one is 3/4 x +1

Answer 16

A

Answer 17

idk why we got a different slope

Answer 18

okay yeah i knew it had to be A or B how did u get A ?

Answer 19

That's really weird...I foundhe slope the old fashioned way, counting the rise and run, and got 3/4....I have no idea why the slope formula didn't work...

Answer 20

oh wait I see

\(\dfrac{4-(-2)}{4-(-4)}\)

we didn't do -2

Answer 21

earlier, I put 2 instead of -2

Answer 22

Ah

Answer 23

ohh ok thanks :))

Answer 24

yw :)