STAAR Review 6

The graph of a quadratic function is shown on the grid.

Which equation best represents the axis of symmetry?

• y = 6

• x = 2

• y = 4

• x = 0

If p(x) = 5(x² + 1) + 16, what is the value of p(11)?

• 690

• 736

• 622

• 626

The graphs of lines k₁ and k₂ are shown on the grid.

Which system of equations is best represented by this graph?

• 3x - y = 2

  4x + 9y = 36

• 3x - y = 6

  4x + 9y = 4

• x - 3y = -18

  9x + 4y = 9

• x + y = 10

  9x + 4y = 13

• 
• 
• 
• 

The table represents some points on the graph of a linear function.

Which equations represents the same relationship?

• 
• 
• 
• 

• 14x¹⁰

• 49x¹⁰

• 14x⁷

• 49x⁷

The function y = 3.75 + 1.5(x - 1) can be used to determine the cost in dollars for a taxi ride of x miles. What is the rate of change of the cost in dollars with respect to the number of miles?

• $1.50 per mile

• $3.75 per mile

• $4.25 per mile

• $5.25 per mile

Which graph best represents a function with a range of all real numbers greater than or equal to -6?

• 
• 
• 
• 

What is the value of x in the solution to this system of equations?

• 6/5

• -2

• -(10/3)

• 3