STAAR 2.0 Review Algebra

Determine the domain of the function on the graph.

• {0, 1, 2, 3, 4, 5, 6, 7, 8}

• {1, 2, 3, 4, 5, 6}

• {-1, 0, 1, 2, 3, 6}

• {-3,-2,-1,0,1,2,3,4,5,6,7}

This table represents some points on the graph of a linear function. Write a function that would represent the same relationship.

Mathematical Equivalence

ON

The graph models a linear function. The rate of change of the graph is ​ (a)   dollars per hour.

• 50

• 100

• 0

• 1/50

What is the slope of a line that passes through the points (2, 3) and (4, 7)?

• 1

• 2

Cody bought 12 items from Academy consisting of shirts and pants for $64. Academy is having a sale for $4 per shirt and $6 per pants. Fill in the blanks to create a system of equations that can be used to determine the number of shirts, s, and the number of pants p Cody

​ (a)   +​ (b)   =​ (c)  

​ (d)   +​ (e)   = 12

• 4s

• 6p

• 64

• s

• p

• 4p

• 6s

• 12p

• 12s

The data in the table can be entered into a calculator to determine a linear equation of best fit where x represents the number of years with a company and y represents an employee’s salary in dollars. Describe the correlation from the data in the table.

There is ​ (a)   ​ ​ (b)   correlation.

• strong

• positive

• negative

• weak

The graph shows an exponential function. Write an equation to represent the function. Round to the nearest hundredth.

Mathematical Equivalence

ON

Answer explanation

StatEdit - ExpReg

• 2

• -1

• 5

• -4

• 0

• No solution

What is the equation of the line perpendicular to y=2x+4 and goes through the point (6, -1)?

Mathematical Equivalence

ON