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officialrogerfp3gf2s
19.09.2019 •
Mathematics
Find the value of x in the figure below.
a. 18
b. 9
c. 4.5
d. 3
Solved
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Ответ:
Step-by-step explanation:
1. The slope-intercept form of a linear equation is y = mx + b, where y = y-coordinate, m = slope, x = x-coordinate, and b = y-intercept.
2. To find the slope, let's take the two points (-10,-3) and (-8,-4) to then plug their values into this formula:![\frac{y_2-y_1}{x_2-x_1}](/tpl/images/2470/6938/f6758.png)
3. Great, now that we have our slope, the equation looks like this so far:
.
4. Since b is the y-intercept, b = -8 because the line intersects the y-axis at the coordinate, (0,-8).
5. When plugging in the values of m and b, we get the equation of![y = -\frac{1}{2} x - 8](/tpl/images/2470/6938/a080b.png)