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Mathematics 10 Online
zunairah:

help

1234Robotnomore1234:

am here to help what is it.

zunairah:

1 attachment
1234Robotnomore1234:

screenshot the image of the coordinate plane.

snowflake0531:

1. Find the slope in between teh two points 2. Find the y intercept Do you know how to find slope between two points?

zunairah:

y e s

snowflake0531:

So what is slope then

zunairah:

i know what slope is i dont know what it means to put the equation in

zunairah:

like does it want me to do y=mx+b

snowflake0531:

1 attachment
snowflake0531:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @zunairah like does it want me to do y=mx+b \(\color{#0cbb34}{\text{End of Quote}}\) yes

zunairah:

oh ok

snowflake0531:

We have (-1,-1) and (-7,11) Plugging that into the equation we have \[\frac{ 11-(-1) }{ -7-(-1) }\] agreed?

zunairah:

yeah i already got 2/-1

snowflake0531:

Which simplifies to -2

zunairah:

y=-2x

snowflake0531:

So then we have m in y=mx+b Which coordinate point do you want to use with slope to find the value of b?

snowflake0531:

Just choose one of the two, it doesn't really matter which

zunairah:

im lagging so hard lol

zunairah:

x ih

snowflake0531:

?...

zunairah:

x

snowflake0531:

... i said a coordinate point

zunairah:

...

zunairah:

IDk you pick

snowflake0531:

We need an x and y coordinate point we have (-1,-1) (-7,11) what is hard about picking one of the coordinate points to use-

zunairah:

nothing was- im sorry my wifi was acting up and stuff wasnt loading

zunairah:

anywho

zunairah:

the second one

snowflake0531:

Okay so we have (-7,11) and slope as -2 y=mx+b 11=-2(-7) + b what is b?

zunairah:

ummm idk

snowflake0531:

What is -2 times -7

zunairah:

14

snowflake0531:

and 11=14+b What is b

zunairah:

idk...

snowflake0531:

What is 11-14

zunairah:

-3

snowflake0531:

So b is -3 So we have y= -2x-3

zunairah:

thx

snowflake0531:

yw~

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