2021 Algebra 1 STAAR (Part 3 of 3)

• {−5, −1.5}

• {2.5, 3}

• {1.5, 5}

• {−3, −2.5}

The table represents some points on the graph of an exponential function.

Which function represents this relationship?

Which statement best represents the equation of the line shown on the grid and its relationship to the x-axis?

• The equation of the line is x = 2.5, and the line is parallel to the x-axis.

• The equation of the line is x = 2.5, and the line is perpendicular to the x-axis.

• The equation of the line is y = 2.5, and the line is parallel to the x-axis.

• The equation of the line is y = 2.5, and the line is perpendicular to the x-axis.

Linear function t has an x-intercept of −1 and a y-intercept of 5. Which graph best represents t?

• 
• 
• 
• 

The value of y is directly proportional to the value of x. When x = 3.5, the value of y is 14. What is the value of y when x = 28?

A quadratic function is graphed on the grid.

Which answer choice best represents the domain and range of the function?

• Domain: x ≥ − 3

  Range: y ≥ 5

• Domain: All real numbers

  Range: y ≥ 5

• Domain: x ≥ − 3

  Range: All real numbers

• Domain: y ≥ 5

  Range: x ≥ −3

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

Which function represents f ?

• f(x) = 26(x − 2)

• f(x) = −26(2x − 1)

• f(x) = 13(x − 2)

• f(x) = −2(26x − 1)

• (x+1)(x+24)

• (x+2)(x+12)

• (x+3)(x+8)

• (x+4)(x+6)

• 
• 
• 
•