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Write the equation of the line from the graph.​

Write the equation of the line from the graph.​-example-1
User Mo Patel
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2 Answers

18 votes
18 votes

Answer: y = 4x + 2

Explanation:

User Justin Stayton
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11 votes
11 votes

Answer: y = 4x + 2

Explanation:

A linear equation is usually in y= mx + b form, where m is the slope and b is the y-intercept.

In order to calculate the slope, we choose two-point from the graph. (-1 ,-2) and (0, 2).

slope =
(y_(2)- y_(1) )/(x_(2) -x_(1) )

= (2 - (-2)) / (0 - (-1))

= (2 + 2) / (0 + 1)

= 4 / 1

= 4

y-intercept means the y value when x is 0, according to the graph, the y value when x at 0 was 2. So the y-intercept is 2.

Plug both slope and y-intercept in, we get the equation:

y = 4x + 2

User Register
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