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neonofarm [45]
3 years ago
11

*100 POINTS* *100 POINTS*

Mathematics
2 answers:
puteri [66]3 years ago
5 0

Answer:

\huge{ \boxed{y =  -  \frac{1}{3} x + 1}}

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

From the graph to find the equation of the line we must first find the slope

The slope of a line given two points can be found by using the formula

m =  \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\

where

(x1 , y1) and (x2 , y2) are the points

Using the points (-6 , -3) and (6,-7) we have

m =  \frac{ - 7 -  - 3}{6 -  - 6}  =   - \frac{4}{12}  =   - \frac{1}{3}  \\

Next we use the slope that has been found and one of the points to find the equation of the line

To find an equation of a line when given the slope and a point we use the formula

y - y1 = m(x - x1)

where

m is the slope

( x1 , y1) is the point

From the question using slope -1/3 and point (-6,3) we have

y - 3 =  -  \frac{1}{3} (x -  - 6) \\ y - 3  =  -  \frac{1}{3} (x + 6) \\ y - 3 =  -  \frac{1}{3} x - 2 \:  \:  \:  \\  y =  -  \frac{1}{3} x - 2 + 3 \:  \:

The equation of the line in slope-intercept form is

y =  -  \frac{1}{3} x + 1 \\

Hope this helps you

aleksklad [387]3 years ago
3 0

Answer:

  • y = - 1/3x - 5

Step-by-step explanation:

Use two given points (-6, -3) and (6, -7) to find equation of the line.

<u>The slope:</u>

  • m = (y₂ - y₁)/(x₂ - x₁) = (-7 - (-3)) / (6 - (-6)) = -4 / 12 = - 1/3

<u>The y - intercept is also visible on the graph (0, -5): </u>

  • b = -5

<u>The line is:</u>

  • y = - 1/3x - 5
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