Find the vertex and axis of the graph of the function f(x)=3(x-1)^2+5

When turned about its axis of rotation, which shape could have created this three-dimensional object?

Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.