Question

please help
(4,-6); m= 3/5

Answer 1

Do you want the equation of the straight line?

Answer 2

thats the possable out comes.

Answer 3

\(m\) is the gradient of the line, right? How do you find the gradient of a straight line?

Answer 4

idk

Answer 5

use the same formula for the other question
the gradient is the same as the slope

Answer 6

its D?

Answer 7

\(\Huge m={\frac{\text{y difference}}{\text{x difference}}}\)

Answer 8

ya

Answer 9

nope...

Answer 10

so, \(\Huge m=\frac{y-(-6)}{x-4}\) ok?

Answer 11

ok

Answer 12

So what's the answer?

Answer 13

-4?

Answer 14

I mean what's the option?

Answer 15

Oh A

Answer 16

\[\Huge \cal Bingo!\]

Answer 17

lol can you help on one more?

Answer 18

Yes sure.

Answer 19

What is the slope of the graph?

Answer 20

how do i find that?

Answer 21

take two points of the graph and plugin the values to \[\Huge m={\frac{\text{y difference}}{\text{x difference}}}\]

Answer 22

the 2 points are 10 and - 10 right??

Answer 23

Not quite. If you choose a point then that point has two coordinates: (x,y) right?

Answer 24

ya

Answer 25

So?

Answer 26

thats 10 and -10 thats the x,y

Answer 27

10 and -2?

Answer 28

It's one point. To calculate slope you've to choose two points:
Let's take point A and B.
Can you tell me what's the coordinates of point A?

Answer 29

4,-8?

Answer 30

nope. The coordinates of point A is (-8,6).. make sure to use brackets when writing coordinates. :) Can you try the coordinates of point B?

Answer 31

-6,4

Answer 32

when you telling coordinates first you have to tell x coordinate. then you've to tell y coordinates.

Answer 33

so 4,-6?

Answer 34

you got that. So what would be the slope of the graph?

Answer 35

i dont know

Answer 36

i think i got it is it C?

Answer 37

Let's put the equation of the slope this way:
\[\huge m=\frac {y_A-y_B}{x_A-x_B}\]
Can you plugin the values?

Answer 38

is it C?

Answer 39

HELLO?!

Answer 40

yep.... Do you need more explanation?

Answer 41

no