Write the equation of the line that passes through (3, 4) and (2, −1) in slope-intercept form. y = 3x − 7 y = 3x − 5 y = 5x − 11 y = 5x − 9
@SourMunchkin7806
i dont know this one sorry lol...i know bits and pieces of this section of math
its ok:P
@JustSaiyan @Felicity96 @Vocaloid
Katherine what do you think
idk. that's why I'm asking
Take a guess
A
You need to first identify the slope, plug the points in here... \(\Large\bf{\frac{-1-4}{2-3}}\) what is the slope?
umm
-5/-1
Correct, so the negatives cancel to 5. So that is our slope! \(\large\bf{y=5x+b}\) Now we need to identify the y-intercept. So we would plug in one coordinate into the equation. Let's use (3,4). \(\large\bf{4=5(3)+b}\) What is b?
y=3x-5
not quite. First we multiply. \(\large\bf{4=15+b}\) Then subtract 15 from each side. \(\large\bf{-11=b}\) \(\large\bf{y=5x-11}\)
So, C?
yup
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