Unit Test — Unit test Answers

Which graph represents y – 1 = 2(x – 2)?

Eight less than four times a number is less than 56. What are the possible values of that number?

If a(x) = 2x - 4 and b(x) = x + 2, which of the following expressions produces a quadratic function?

The formula for the area of a trapezoid is When this equation is solved for , one equation is . Which of the following is an equivalent equation to find ?

Given , find f(7).

Which of the following is an odd function?

Which graph represents an odd function?

Which graph represents the same relation as the table below?xf(x)–25011–12–3

Edmundo used a number line to show the solution for the inequality . Which number line shows the solution?

Which is the solution set of the compound inequality and

If , what is ?

If and , what is the domain of ?

What is the solution to the inequality ?

Which function is most likely graphed on the coordinate plane below?

Meryl needs to add enough water to 11 gallons of an 18% detergent solution to make a 12% detergent solution. Which equation can she use to find g, the number of gallons of water she should add? Original(Gallons)Added(Gallons)New(Gallons)Amount of Detergent1.980 Amount of Solution11g

If s(x) = 2 – x2 and t(x) = 3x, which value is equivalent to ?

If f(x) = |x| + 9 and g(x) = –6, which describes the range of (f + g)(x)?

Which function has an inverse that is also a function?

Each week, Rosario drives to an ice-skating rink that is 60 miles away. The round-trip takes 2.75 hours. If he averages 55 miles per hour on his way to the rink, which equation can be used to find x, the number of miles per hour he averages on his way home?

The formula for the volume of a sphere is . What is the formula solved for r?