Mathematics
Grade10
Easy

Question

Write the equation of a line with a slope of 2 and y-intercept of -5.

  1. y = 5x - 2
  2. y = 2x - 5
  3. y = -2x - 5
  4. y = 2x + 5

Hint:

Given the slope of line as m and intercept as b .

the Equation of line will be y = mx + b .
 

The correct answer is: y = 2x - 5


    Given the slope of line = 2 and intercept = -5
    Step 1 : Using the slope and y-intercept of the line to write the equation of the line.
    Slope-intercept from of equation of a line is y = mx +b
    Step 2 :
    ⇒ y = 2x -5                      [substituting 2 for m and y for -5]
    So , y = 2x -5    is the equation of line .

    Equation of line in slope intercept form is 

    y = slope.x + intercept .
     

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