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Bingel [31]
4 years ago
5

Find the slope of the line that passes through (-66, -21) and (-67, 20)

Mathematics
1 answer:
Sphinxa [80]4 years ago
5 0
The straight line is given by the equation
y=kx+b
We substitute coordinates of points 
-21=-66k+b (1)
2=-67k+b (2)
We give a system of equations
Solution of this system:
(1) b=66k-21
(2) 20=-67k+66k-21
20=-k-21
k=-21-20
k=-41
b=-41*66-21=-2727
y=-41x-2727

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Answer:

1  :

Step  2  :

Equations which are never true :

2.1      Solve :    2   =  0

This equation has no solution.

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Solving a Single Variable Equation :

2.2      Solve  :    2x+1 = 0

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Divide both sides of the equation by 2:

                    x = -1/2 = -0.500

One solution was found :

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3 years ago
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The answer is
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4 0
3 years ago
Read 2 more answers
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3 0
3 years ago
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Viefleur [7K]
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7 0
3 years ago
How many solutions are there to 17-1/9x=10
S_A_V [24]

Answer:

one solution

Step-by-step explanation:

Given

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x = 63

3 0
3 years ago
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