Asked by Amy
Line l has a y-intercept of 2 and contains the points (a,a) and (2a,12). If a is a positive constant, what is the slope of line l?
Answers
Answered by
Reiny
just use the definition of slope.
slope of line = (12 - a)/(2a - a)
= (12-a)/a
since you also know the y-intercept is 2, the equation would be
y = ((12-a)/a) x + 2
slope of line = (12 - a)/(2a - a)
= (12-a)/a
since you also know the y-intercept is 2, the equation would be
y = ((12-a)/a) x + 2
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