Mathematics
10 Online
zunairah:
help
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1234Robotnomore1234:
am here to help what is it.
zunairah:
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
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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:
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
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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
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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:
?...
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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-
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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
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snowflake0531:
What is -2 times -7
zunairah:
14
snowflake0531:
and
11=14+b
What is b
zunairah:
idk...
snowflake0531:
What is 11-14
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zunairah:
-3
snowflake0531:
So b is -3
So we have y= -2x-3
zunairah:
thx
snowflake0531:
yw~