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Semmy [17]
3 years ago
7

Solve for x in the equation x2 + 4x-4-8-

Mathematics
1 answer:
liubo4ka [24]3 years ago
8 0

Answer:

A

Step-by-step explanation:

x2+4x-4-8

x2+4x-12

x2+6x-2x-12

x(x+6)-2(x+6)

(x-2)(x+6)

Either

x-2=0 OR x+6=0

x=2 OR x=-6

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Step-by-step explanation:

For this problem, we are asked to find the slope and y-intercept.

We see that this linear line goes through the y-axis at (0,-5). therefore, our y-intercept is -5.

To find the slope, we would use the formula m=\frac{y_{2} -y_{1} }{x_{2}-x_{1}  }. We can use the points (0,-5) and (5,0) since we can clearly see the line goes through these 2 points.

m=\frac{0-(-5)}{5-0} =\frac{5}{5} =1

From our formula, we found that the slope is 1.

For the first box, you would fill in 1, the slope. The second box would be -5, the y-intercept.

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