Staar 19

A part of an exponential function is graphed on the grid.

Which inequality best represents the domain of the part shown?

• x ≥ -2

• y ≥ 4.5

• x ≥ 4.5

• y ≥ -2

Tags

CCSS.HSF-IF.C.7E

Which value of x is a solution to this equation?

5 x ² - 36 x + 36 = 0

• x = -6

• x = 4

• = -1.8

• x = 1.2

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

The table shows a linear relationship between x and y .

What is the rate of change of y with respect to x ?

• $-\frac{9}{2}$

• $\frac{2}{9}$

• $-\frac{2}{9}$

• $\frac{9}{2}$

Tags

CCSS.HSF-LE.A.1B

Which graph best represents y = 10(0.85) ^x ?

• 
• 
• 
• 

Tags

CCSS.HSF-IF.C.7E

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

3 x - 5 y = 22

y = -5 x + 32

• -6.5

• 0.5

• 6.5

• -0.5

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which expression is equivalent to 210 d ² - 63 d ?

• 21 d (10 d - 3)

• 21 d (10 d + 3)

• 21(10 d + 3)

• 21(10 d - 3)

Tags

CCSS.7.EE.A.1

The graph of linear function k passes through the points (-7,0) and (1,8).

Which statement must be true?

• The slope of the graph of k is $-\frac{4}{3}$

• The graph of k passes through the point (-1,-8).

• The zero of k is 7.

• The x -intercept of the graph of k is -7.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The expression ( x ²²)( x ⁷)³ is equivalent to x^p . What is the value of p ?

Tags

CCSS.HSA.APR.A.1

The graph of f ( x ) = x ² 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 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 .

The table shows the amount of pet food in cups remaining in an automatic feeder as a function of the number of meals the feeder has dispensed.

Based on the table, which function models this situation?

• f ( n ) = -3 n + 24

• $f\left(n\right)=-\frac{1}{3}n+16$

• f ( n ) = -3 n + 64

• $f\left(n\right)=-\frac{1}{3}n+8$

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2