Question

Please help me graph the following equation.

Which graph best represents the equation shown below?

d = −3t − 1

A. http://i.imgur.com/0bZFY.gif
B. http://i.imgur.com/p8saA.gif
C. http://i.imgur.com/g2I6O.gif
D. http://i.imgur.com/GiLiW.gif

Answer 1

This is in slope-intercept form, so look for a graph that has a slope of -3, and a d-intercept of -1.
Anything that does not intersect d at -1 can immediately be disregarded.
Then, look at the slope of the line, to make sure it's -3, that is, for every increase in t, d decreases by three.

Answer 2

So the answer is B?