Consider the functions f(x) = (4/5)x and g(x) = (4/5)x+6. What are the ranges of the two functions?
f(x): {yly > }
g(x): {yl y > }

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z