Question

help please - linear function ? ?

Answer 1

help would be appreciated :)

Answer 2

how do we determine a slope between 2 points?

Answer 3

rise / run ?

Answer 4

yep

Answer 5

also known as (change in y)/(change in x)

Answer 6

can we narrow the options any? are there some that are jsut NOT going to work?

Answer 7

maybe the 2nd and last one because theres no point to rise and run too?

Answer 8

well, the second one is bad for a different reason, the last one is a possible good option

Answer 9

the third one, as x gets bigger, y gets smaller. we cant increase by 4 if we are decreasing ... can we?/

Answer 10

nope

Answer 11

then we need to test the first and last options

the first one can be formula checked: the last one can be counted to chk

Answer 12

ok so it the y on the first one itwould be 1 - ( -11)? and for x it would be 6 - 3?

Answer 13

that looks good to me

Answer 14

so, 12/3 gets us ....

Answer 15

4?

Answer 16

yes

now to test the last one

Answer 17

im not sure how to get points on a graph to use the formula

Answer 18

well, we can try to find where the line hits a crossing

2,0 and 4,8 look like hits

Answer 19

oh okay so 0 -2 and 8 -4 would be -2 / 4 ?

Answer 20

x:2-4 and y:0-8

y/x = -8/-2

Answer 21

4

Answer 22

then the last one works for us too

Answer 23

is there any other ones?

Answer 24

well, out of 4 options, 2 are bad .... and the other 2 are good. sooo, im going to say thats all there is to test out

Answer 25

oh, okay thanks alot!

Answer 26

youre welcome