A line has a slope of 7 and a y-intercept of -4. What is its equation in slope intercept form

Discussion in 'Calculator Requests' started by math_celebrity, May 25, 2020.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    A line has a slope of 7 and a y-intercept of -4. What is its equation in slope intercept form

    The slope-intercept equation for a line:
    y = mx + b where m is the slope

    Given m = 7, we have:
    y = 7x + b

    The y-intercept is found by setting x to 0:
    y = 7(0) + b
    y = 0 + b
    y = b

    We're given the y-intercept is -4, so we have:
    b = -4

    So our slope-intercept equation is:
    y = 7x - 4
     

Share This Page