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seropon [69]
3 years ago
15

((7,-1) and (21,-5) what is the equation in slope intercept form?

Mathematics
1 answer:
mr_godi [17]3 years ago
6 0

Answer:

y=-2/7x+1

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-5-(-1))/(21-7)

m=(-5+1)/14

m=-4/14

simplify

m=-2/7

y-y1=m(x-x1)

y-(-1)=-2/7(x-7)

y+1=-2/7(x-7)

y=-2/7x+2-1

y=-2/7x+1

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mina [271]

Answer:

1. 50 degrees.

2. 90 degrees

3. 50 degrees

Step-by-step explanation:

hope this helps!

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3 years ago
what are the roots of the polynomial equation x3-7x=6x-12? Use a graphing calculator and a system of equations.
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X3-7x=6x-12
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sqrt(delta)=sqrt(49)=7
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x_2=(-1+7)/2=3

(x-1)(x+4)(x-3)=0

Answear:
Roots: x=1, x=-4, x=3.
3 0
3 years ago
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Is this correct ? if not what’s the correct answer?
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