Question

Which graph shows y=2⌈x⌉−3 ?

Answer 1

the correct answer is the first graph.  (top left)

check a few values of x to see that:

x = 0 --> y = -3

x = 0.1 --> y =-1

x = 1 --> y = -1

x = 1.1 --> y=1

etc.

The other choices are easily excluded by the above checks.

Answer 2

Answer:

b

i hope this helps~!