Question

Write a rule for the linear function in the graph
A. y = -4x + 13

B. y = -4x – 13

C. y = 4x – 13

D. y = 1/4x – 13

Answer 1

this question??

Answer 2

yeah

Answer 3

ok first off, is the slope positive or negative

Answer 4

negative

Answer 5

why negative

Answer 6

i think its because its going down

Answer 7

as you move from left to right, is the line going up or down?

Answer 8

down

Answer 9

are you sure?

Answer 10

remember you're going from left to right

Answer 11

ok if is going from left to right is up or down because i didn't know how to do it

Answer 12

is the point on the right higher than the point on the left?

Answer 13

i don't know how to do this at all ;(

Answer 14

look at the two points on the graph

which one is higher

Answer 15

(4,3) right

Answer 16

because the point on the right is higher, this means the slope is positive

Answer 17

so that rules out A and B

Answer 18

because A and B have negative slopes

Answer 19

so is c

Answer 20

now notice how if you start at the point on the left (3, -1)

and you go up 4 units, then go to the right 1 unit to land on (4, 3)

this would mean the slope is 4, so that means the answer has to be choice C since that's the only equation with a slope of 4

Answer 21

correct, you got it

Answer 22

thankx a lot :)

Answer 23

yw