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kolezko [41]
3 years ago
7

What is the equation of the function that is graphed as line a​

Mathematics
1 answer:
levacccp [35]3 years ago
8 0

Answer:

<h2>y = -x - 1</h2>

Step-by-step explanation:

From the graph we have:

y-intercept = -1

x-intercept = -1

The slope-intercept form of an equation of a line:

<em>y = mx + b</em>

m - slope

b - y-intercept

Therefore we have: <em>y = mx - 1</em>

Put the coordinates of the x-intercept to the equation:

(-1, 0) → x = -1 and y = 0:

0 = -1m - 1       <em>add m to both sides</em>

0 + m = -m + m - 1

m = -1

Finally we have the equation:

<em>y = -1x - 1</em>

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Answer:

53.33 mph

Step-by-step explanation:

Speed is the rate of change of distance with time. Mathematically,

speed = distance/time

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To get the average speed over the entire trip, we must get the total time  spent on trip and the total distance, then apply the speed formula

Time for the first 300 miles

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2 years ago
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