What is y-intercept form of the equation of a line that passes through point (3,4) and has a slope of 3?

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Answer 1 · 2015-10-20T15:12:03

#-5#

With the given, we can use the point-slope form

#y - y_1 = m(x-x_1)#

we can now substitute the given

#y - 4 = 3(x - 3)#

#y - 4 = 3x - 9#

to know the y-intercept, we will use the slope-intercept form

#y = mx + b#

#y = 3x - 9 +4#

#y = 3x - 5#

#b# is the y- intercept = #-5#