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alexdok [17]
2 years ago
12

1. Subtract the linear expressions.

Mathematics
1 answer:
jeyben [28]2 years ago
7 0

(1)\\\\(45x -5) -(13x +4) = 45x-5-13x -4 = 32x -9\\\\\\(2)\\\\-2(4n) -3 + (-7)(8n) +2 = -8n-56n -1 = -64n -1 = -(64n+1)\\\\(3)\\\\(-3.6x+9.4) - (1.9x +3.6) = -3.6x +9.4 -1.9x -3.6 =-5.5x+5.8\\\\\\(4)\\\\-3x+4-(5x-2) = -3x+4-5x +2=-8x +6

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Svetllana [295]

Answer:

A) Slope =

m =  \frac{1}{4} x

explanation:

Take 2 random points off the line, I used (4,1) & (8,2)

The formula to find the slope when given 2 points is

m  =  \frac{rise}{run}  =  \frac{y2 - y1}{x2 - x1}

so in this case x1 & y1 are assigned to (4,1)

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and x2 & y2 are assigned to (8,2)

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so substitute the numbers into the formula and solve !

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