Question

Which equation is represented by the table?

x y (x, y)
0 –1 (0, –1)
1 4 (1, 4)
2 9 (2, 9)


A.
y = 5x – 1

B.
y = 3x – 4

C.
y = 3x + 3

D.
y = –3x + 3
Please Help

Answer 1

hello again

Answer 2

Hello again to you too xD

Answer 3

ok, so the formula for the line is y=mx+b

Answer 4

the graph just makes it confusing ..

Answer 5

m is the slope of the line and b is the y-intercept

Answer 6

do you remember the formula to find the slope?

Answer 7

yes i remember.



so on a. y=5x+5

Answer 8

no that isn't correct

Answer 9

Oh

Answer 10

can you explain to me how you found the slope?

Answer 11

from last time

Answer 12

ok, this is a different type of problem

Answer 13

this time we are given the ordered pairs and we need to find the equation

Answer 14

so the first step in these types of problems is to find the slope of the line

Answer 15

to do this we need to pick two points from the options.

Answer 16

alright so pick any 2 points

Answer 17

:/ sorry its just math is very confusing for me :/

Answer 18

don't be sorry, it is for a lot of people

Answer 19

um. x.y

Answer 20

ya pick two points from the options (0,-1), (1,4), and (2,9)

Answer 21

(1,4)

Answer 22

great, now pick another one

Answer 23

(0,-1)

Answer 24

ok so now that we have our two points, we can find the slope of the line

Answer 25

the formula for slope is rise over run

Answer 26

\[(y_2-y_1)/(x_2-x_1)\]

Answer 27

have you seen this formula before?

Answer 28

no

Answer 29

ok, so this is the slope formula

Answer 30

you just have to plug in your two points and you will get the slope

Answer 31

i'll show you

Answer 32

k