Algebra STAAR Interim

what is the common ratio for this geometric sequence?

135, 45, 15, 5

Which is a zero of the graph?

• 0
• -1
• 1.5
• -3

If f(x)=3x-9, find f(5).

• f(5) = 6
• f(5) = 16
• f(5) = -4
• f(5) = 24

• Function
• Not a Function

• Function
• Not a Function

• Function
• Not a Function

What is the domain of the graph?
Remember:  Domain is x

• 1≤ x ≤ 4
• 1 < x < 4
• 1≤ y ≤ 4
• 1 < y < 4

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

Which equation is best represented by this graph?

• $y+2=\frac{7}{5}\left(x+7\right)$

• $y-2=\frac{7}{5}\left(x-7\right)$

• $y+2=\frac{5}{7}\left(x+7\right)$

• $y-2=\frac{5}{7}\left(x-7\right)$

The graph of f(x) = x² was transformed to create the graph of g(x) = f(x) - 9. Which statement about the graphs is true?

• The graph of g is a reflection of the graph of f across the x-axis.

• The vertex of the graph of graph g is 9 units to the right of the vertex of the graph of f.

• The graph of g is a reflection of the graph of f across the y-axis.

• The y-intercept of the graph of g is 9 units below the y-intercept of the graph of f.

What is the equation in slope-intercept form of the line that passes through the point (5, 0) and is parallel to the line represented by y = 1.2x + 3.8?

•  $y=1.2x-6$  

•  $y=-1.2x+6$  

•  $y=1.2x+5$  

•  $y=-1.2x-5$