Question

Can someone help im terrible at slope pleaseeeeee its urgent

Answer 1

i need this done tonight or ill fail the class :((((

Answer 2

what is hardest part for you?

Answer 3

all of it , i dont get anything about slope it confuses me and im nervous i wont get it done tonight

Answer 4

mm.. okay.
let's do first part

Answer 5

okay?

Answer 6

now we don't know what the red line is . So
let's assume that
y= ax + c
now this is our red line

Answer 7

ok

Answer 8

now look at red line on your graph. it intersects y axis and x axis at -0.5 and 0.5

Answer 9

it looks like it lands on 4?

Answer 10

do explain:)

Answer 11

it looks like 0.5, 4 where the line meets

Answer 12

okay?

Answer 13

well it should be -1. not -0.5

Answer 14

i said wrong before

Answer 15

oh okay i get now ! whats the next step

Answer 16

okay now have two points.
(0,-1) and (0.5,0)

you can plug each point in our red line equation and find "a" and "c"

Answer 17

can you give me values for a and c

Answer 18

y=(0,-1)x+(0.5,0)

Answer 19

Noooooooo

Answer 20

let me do that

Answer 21

y = ax + c
take our first point (0,-1)

now put the values
-1 = a*0 + c

Answer 22

c = -1

Answer 23

um ookay ??

Answer 24

okay do the same for next point (0.5,0)

Answer 25

and give the answer for "a" :)

Answer 26

0.5

Answer 27

since we know c = -1, we don't need to carry c.

y= ax - 1
0 = a*0.5 -1
a*0.5 = 1
a = 2

Answer 28

so far is -1=2*0.5-1

Answer 29

"-1" = 2*0.5 -1
here "-1" is wrong. y value of (0.5,0) is 0. not -1

Answer 30

so then what is Y

Answer 31

y = 0

Answer 32

so 0=2*0.5-1

Answer 33

yes

Answer 34

okay how do we solve

Answer 35

and you get a = 2

Answer 36

"so 0=2*0.5-1" here you still don't know what the a is. so don't add 2 there.

correct one is 0 = a*0.5 -1

Answer 37

ooh alright

Answer 38

now we know a = 2 and c = -1

Answer 39

red line is
y = ax +c

so put answers to the equation
y = 2x - 1

Answer 40

this is the answer for 1st one