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mestny [16]
3 years ago
15

Complete the equation of the line through (2,1) and (5,-8) WORTH 20 POINTS

Mathematics
2 answers:
ale4655 [162]3 years ago
7 0

Answer:


First we calculate the slope (which is called "m".


Slope = m = (Y2 -Y1) ÷ (X2 -X1)


m = (-8 -1) / (5 -2) = -9 / 3 = -3


We next fill in this equation: b = y -mx


We know m = -3 and we can choose a point (2, 1) to calculate "b"


b = 1 --3 * 2 b = 7


Putting this into y = mx +b


y = -3x +7


s2008m [1.1K]3 years ago
6 0
This is pretty much what it is- when you do it try to get your lines straighter
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Answer:

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Step-by-step explanation:

= -8+(-5)+9+11

= -8-5+20

= -13+20

= 7

3 0
3 years ago
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This problem deals with a weighted average. Since the AP classes count twice as much as regular classes, their grades must be counted twice. It's as if for each AP class he's taking, he was taking two classes. The points of each AP class grade is added twice, and the each AP class counts as 2 classes in the number of classes.

Each AP class counts twice and counts as 2 classes.

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<span>Answer: B 3.0</span>
7 0
3 years ago
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mihalych1998 [28]

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3 years ago
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Savatey [412]

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Step-by-step explanation:

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As we have two sides of the triangle, we can solve for the length of the other side by using Pythagoras' theorem.

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Step 2:

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