Model and Reason with Equations and Inequalities: Part One — Test Answers

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

Becca graphs the equations y is equal to negative 3 times open paren x minus 1 close paren and y is equal to x minus 5 to solve the equation negative 3 times open paren x minus 1 close paren is equal to x minus 5 Her graph is shown. What are the solution(s) of negative 3 times open paren x minus 1 close paren is equal to x minus 5 ?

Whose work is correct?

The scatterplot shows the distance (in feet) that a person was from a motion sensor during an experiment in math class. Use the labeled points to create a linear model. About what distance in feet, y , would a person be 8 seconds after the experiment begins?

Which region represents the solution to the given system of inequalities? y is less than negative 1 half x y is greater than or equal to 2 x plus 3