Find the unit rate

2/5 yard in 4/3 seconds

Which function families have maximums and minimums? 1.)linear absolute value functions and exponential functions 2.) linear absolute value functions and quadratic functions 3.) linear absolute value functions and linear functions 4.) linear absolute value functions and constant functions

Which of the following is true for the relation f(x)=2x^2+1

Identify the number as a rational or irrational.explain. 127