Comparing Multiple Representations of Functions

Which function has the greater rate of change?

Valerie and Oscar are contestants on the Biggest Loser. Valerie's weight loss progress is represented by the function W = 235 - 2.5t, where W is her weight in pounds and t is the time in weeks. Oscar's weight loss progress is represented by the table. Who weighed more at the beginning of the show?

Valerie and Oscar are contestants on the Biggest Loser. Valerie's weight loss progress is represented by the function W = 235 - 2.5t, where W is her weight in pounds and t is the time in weeks. Oscar's weight loss progress is represented by the table. Who is losing weight faster?

Is the relation a function?

​ (a)   ​

Which company pays more per shift?

Which company pays the most per pizza?

Sophia babysits for three different families. Sophia’s earnings for babysitting for the Smith family is represented in the table below. Sophia’s earnings for babysitting for the Jones family is represented in the graph below. Lastly, Sophia’s earnings for babysitting for the Wilson family is represented by the equation below. Which family should she babysit for? (Which one will pay her more money?)