Question

Select all statments that are true

A.) This graph is one to-one
B.)f (4.9)=5
C.)f (-3.4)=-4
D.)This is the graph of the absolute value function
E.)this is the graph of the greatest integer function.
PLEASE HELP!!

Answer 1

any thoughts?

Answer 2

@peachpi I think that E is one of the true statements but I don't know about the others.

Answer 3

@sammixboo

Answer 4

A one-to-one graph means that
given any value of x, there is exactly one value of y AND
given any value of y, there is exactly one value of x.
Look at the graph again and see if BOTH of the above necessary conditions are true.

Answer 5

Hint:
greatest integer function of x, denoted by
[x]
is defined as the greatest integer that does not exceed x.
For example, [4.1]=4, [-3.2]=-3, [6]=6, [0]=0, and [-4]=-4.
Recall that "greater" means to the right, so [-3.2]=-3.
See
http://mathbits.com/MathBits/TISection/PreCalculus/GraphGreatestIntFunction.html
for more illustrations, examples, and explanations.