How do you the slope & the y - intercept for #f(x) = -5x - 9 #?

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Answer 1 · 2015-07-10T23:13:27

The slope is #-5#, and the #y#-intercept is at (#0,-9#).

The "slope-intercept" form of a straight line equation is

#y = mx + b#,

where #m# is the slope and #b# is the #y#-intercept.

Your equation is

#f(x) = -5x - 9#

If we compare the two equations, we see that

#m = -5# and #b = -9#.

So the slope is #-5# and the #y#-intercept is at (#0,-9#).

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