In the right triangle shown below is a=2b+4 and all sides are integers

possible integers for side B. 4cm 5cm 8cm

                                             10cm 12cm 24cm

For the right triangle, a is 24 cm long, b is 10 cm long, and c is 26 cm long.

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value