STAAR PRACTICE

The function f(x) = x was transformed to form g(x) = f(x) - 23.

Which statement is true about the graphs of f and g?

• The graphs of f and g are not parallel, and the graph of f is translated 23 units up to create the graph of g.

• The graphs of f and g are not parallel, and the graph of f is translated 23 units down to create the graph of g.

• The graphs of f and g are parallel, and the graph of f is translated 23 units up to create the graph of g.

• The graphs of f and g are parallel, and the graph of f is translated 23 units down to create the graph of g.

A graph of a quadratic function is shown. What are the x-intercepts of the function? Select the TWO correct zeros.

What is the rate of change?

• $39 per game

• $78 per game

• $41 per game

• $124 per game

Dance lessons are offered at two studios. The cost of dance lessons are each studio is shown.

Studio Q charges a $30 registration fee plus $80 per month.

Studio R charges a $105 registration fee plus $65 per month.

After how many months will the total cost of the dance lessons be the equal at the two studios?

• 5

• 280

• 9

• 430

A fish tank is being drained at a constant rate. The graph shows the linear relationship between the volume of water in the fish tank in liters and the time in minutes the tank has been draining.

Which value best represents the rate of change of the volume of water in the fish tank with respect to time?

• -6 L/min

• 6 L/min

What is the solution set for 12 - 4w > 2(w - 18)?

(REMEMBER to flip your inequality when you divide by a negative)

• w > 8

• w < 5

• w < 8

• w > 5

• 2x - 3

• 2x - 5

• x + 3

• x + 5

• x - 3

A part of quadratic function f is graphed on the grid. What is the domain of the part of the function shown?

• All real numbers greater than or equal to -1

• All real numbers greater than or equal to 1

• All real numbers

• All real numbers greater than or equal to -1 and less than or equal to 5