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Oduvanchick [21]
3 years ago
13

Devon made the scatter plot to track his bank balance over time.

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
6 0

Answer:

y = -15x + 250

Step-by-step explanation:

Slope: I see two distinct points: <em>(14, 40) and (10, 100)</em>.

Using the slope equation, I get: <em>(100 - 40)/(10 - 14) = </em><em>-15</em>.

The slope is -15, so in a point-slope formula, it will go before the x.

Y-intercept: on the graph, when x = 0, y is 250. That goes after the x +.

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Temka [501]

Answer:

y= 2x -3

Step-by-step explanation:

Let's rewrite the given equation into the form of y=mx+c, so that we can find the gradient of the line. In this form, m (coefficient of x) is the gradient.

4x -2y= 3

2y= 4x -3

<em>Divide</em><em> </em><em>by</em><em> </em><em>2</em><em> </em><em>throughout</em><em>:</em>

y = 2x - 1 \frac{1}{2}

Thus the gradient is 2.

Parallel lines have the same gradient thus the line would also have a gradient of 2.

Substitute m=2 into the equation:

y= 2x +c

To find the value of c, substitute a pair of coordinates.

When x=2, y=1,

1= 2(2) +c

1= 4 +c

c= 1 -4

c= -3

Thus, the equation of the line is y= 2x -3.

5 0
3 years ago
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galina1969 [7]

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Step-by-step explanation:

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3 years ago
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Use the following function to find f(9)<br> f(x) = 6x<br> f(9)=
san4es73 [151]

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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d

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