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siniylev [52]
3 years ago
5

How do you identify the slope and y intercept with the equation y=-3x+4

Mathematics
1 answer:
vazorg [7]3 years ago
6 0

Answer:

Slope is rise over run

Step-by-step explanation:

How many do you go up over how many you go over.

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60% increase

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What is the x intercept od this piecewise function? A) (0,2) B) (2,0) C) (0,4) D) (4,0)​
Arte-miy333 [17]

Answer: Choice B) (2,0)

======================================

Set the first piece equal to zero and solve for x

x^2 - 4 = 0

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Keep in mind that the first piece y = x^2-4 is only graphed when x = 2 or larger, so we ignore x = -2. This is one x intercept, but there may be more. Let's check the other graph to see what we get.

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Set the second piece equal to zero and solve for x

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We get the same result as above in the prior section. Because of this, the two pieces connect at this junction point.

The x intercept x = 2 leads to the location (2,0). The x intercept always occurs when y = 0.

The graph below shows this.

side note: the red piece y = x^2 - 4 looks linear, but it's actually not a straight line. It's just a really stretched out curve.

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