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What is the equation of the line in slope-intercept form?

What is the equation of the line in slope-intercept form?-example-1
User Qwertymk
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1 Answer

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Answer:

The equation of the line in slope-intercept form is:

y = x + 3

Explanation:

The slope-intercept form of the line equation


y = mx+b

where

  • m is the slope
  • b is the y-intercept

Taking two points from the graph

  • (0, 3)
  • (2, 5)

Determining the slope between (0, 3) and (2, 5)

(x₁, y₁) = (0, 3)

(x₂, y₂) = (2, 5)

Using the formula

Slope = m = [y₂ - y₁] / [x₂ - x₁]

= [5 - 3] / [2 - 0]

= 2 / 2

= 1

Thus, the slope of the line = m = 1

We know that the value of the y-intercept can be determined by setting x = 0 and determining the corresponding value of y.

From the graph, it is clear

at x = 0, y = 3

Thus, the y-intercept b = 3

now substituting b = 3 and m = 1 in the slope-intercept form of line equation

y = mx + b

y = 1(x) + 3

y = x + 3

Therefore, the equation of the line in slope-intercept form is:

y = x + 3

User Jim Smith
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