Unit Test — Unit test Answers

f(x) = 2x – 1g(x) = 7x – 12What is h(x) = f(x) + g(x)?

Which is equivalent to ?

On a coordinate plane, an absolute value graph has a vertex at (negative 4, negative 2).

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The number of rows in an auditorium can be represented by the function f(x) = 80x.The number of seats in each row can be represented by the function g(x) = x + 7.Which function represents the total number of seats, h(x) = f(x)g(x)?

The dimensions of a triangle are represented by the functions shown.

If , which inequality can be used to find the domain of f(x)?

If g(x) = 2 − 1, what is g(−2.3)?

Jack and Susie want to save to buy a trampoline for their children. They each open a savings account that earns 1.5% a year. Jack opens his account with $1,000, and Susie opens her account with $800. x = number of yearsThe following functions represent the value of the savings accounts in x years:Jack’s savings account: f(x) = 1000(1.015)xSusie’s savings account: g(x) = 800(1.015)x Which function represents the total amount Jack and Susie will save in x years?

A plant food company recommends mixing a teaspoon of food with every gallon of water and only adding a teaspoon when the water level goes above the next whole gallon.Which graph models the number of teaspoons of food depending on the amount of water?

The graph of f(x) = |x| is transformed to g(x) = |x + 1| – 7. On which interval is the function decreasing?

All points of the step function f(x) are graphed.

Which is equivalent to ?

Which times and distances are represented by the function? Select three options.

Which rule can be used to describe the growth of the y-values of the function over each interval from to ?