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Tanya [424]
2 years ago
10

Write an equation representing the relationship of 10:20 shown in the graph ​

Mathematics
1 answer:
Katyanochek1 [597]2 years ago
4 0

Answer:

20=2(10)

Step-by-step explanation:

10:20 is a good point that passes a line to another.

This graph is a linear graph.

The linear equation is

y=mx+b

y = 20 (the y coordinate in the graph)

m = slope

x = 10 (the x coordinate in the graph)

b = y-intercept

<u>Finding slope</u>

To find the equation, we'll need to plug in the values in the formula. To find slope using two points, use the formula, then plug in the values:

\frac{y_2-y_1}{x_2-x_1}

(10, 20) and (20, 40)

=\frac{40-20}{20-10}

= \frac{20}{10}

\bold{m= 2}

<u>Finding the y-intercept</u>

You have to find the slope first before finding the y-intercept. So, plugin one of the two points we used to find the slope into the formula and solve for b

(10, 20)

20=2(10)+b

20=20+b

20-20=20-20+b

\bold{b=0}

The y-intercept is zero, and when it is, you do not add it since zero is nothing.

The equation is 20=2(10)

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3 years ago
Find the value of X, rounded to the nearest tenth. <br> A. 31.8<br> B. 31.4<br> C. 10.3<br> D. 10.7
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