Question

WILL GIVE MEDAL AND FAN!!!!!! A line has a slope of 2 and passes through the point (4 0) What are the coordinates of another point that is on the line?

Answer 1

Answer choices:

(0,2)
(2,0)
(6,4)
(4,6)

Answer 2

Hey guys can you help

Answer 3

standard form for a straight line is y=mx+c, where m is the slope and c is the y-intercept.

so the easiest way is to find the eqn of the line n test the points given as choices to see which one is on it.

Answer 4

ok then what

Answer 5

what is m, the slope, given in ur prob?

Answer 6

2

Answer 7

0

Answer 8

is that correct

Answer 9

not really - u have to solve for the y-intercept, c....

u have y=2x+c and u know (4,0) is a point on the line right?

Answer 10

yeah

Answer 11

so put x=4, y=0 in the eqn to find c

Answer 12

ok give me sec to see what i get

Answer 13

sure take ur time :)

Answer 14

thanks

Answer 15

what would i put in for c

Answer 16

or am i finding c

Answer 17

u are trying to find c

Answer 18

ok

Answer 19

-8

Answer 20

8

Answer 21

hahahaa which one? 8 or -8?

Answer 22

sorry i meant 8

Answer 23

why? show me plz

Answer 24

oh ok

Answer 25

c=?

Answer 26

i thought it was 8 is that incorrect

Answer 27

0-8=8+c-8

c=?

Answer 28

0=c oh my gosh i just got it

Answer 29

no, read my last post again plz :( c is not 0 and it is not 8

Answer 30

i am really connfused could you explain

Answer 31

0-8=8+c-8

what is 0-8 equal to?

Answer 32

-8

Answer 33

so the left hand side is -8...how about the right hand side 8+c-8?

Answer 34

0

Answer 35

8+c-8 is equal to....it is not 0 :(

Answer 36

well 8-8 is 0 and that only leave c

Answer 37

combining with the right hand side which equals to -8, wat do u get?

Answer 38

you would get -16 ???

Answer 39

i dont think it is right

Answer 40

No :(
scroll up...
what we found the left hand side is equal to....

Answer 41

left side is -8 and right side -8

Answer 42

correct about left side
scroll up to see what u said was on the right hand side plz

Answer 43

c

Answer 44

so combining the two, c=?

Answer 45

-8

Answer 46

so the eqn for the line become...?

Answer 47

i am very confused about the eqn!!!