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2023 STAAR Test 8th Grade

Quiz by Kathleen Patterson

Texas Essential Knowledge and Skills (TEKS)

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Q 1/13
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The graph of a linear function is shown on the coordinate grid. What is the y-intercept?
29
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13 questions

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Q1
The graph of a linear function is shown on the coordinate grid. What is the y-intercept?
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300s
Q2
The graph of a linear function is shown on the coordinate grid. What is the slope?
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30s
Q3
A bus travels 25 miles in 30 minutes. Which graph has a slope that best represents the number of miles per minute the bus travels?
300s
Q4
An organization published pamphlets of different lengths. The scatterplot shows the relationship between the number of pages and the word count of each pamphlet. Based on the data, which of these is the best prediction of the word count for a 10-page pamphlet?
1500
2400
2000
2700
300s
Q5
The graph of a linear function is shown on the grid. Create an equation that represents the relationship shown on the graph.
y = ____x +_______
y = 3/2x + 6
y = -2/3 + -4
y= -3/2x +6
y = 2/3x + -4
300s
Q6
Order from least to greatest.
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300s
Q7
The table describes two dilations with the center of dilation at the origin. Which rule describes each dilation?
Box 1: (x,y) $\rightarrow$ (x + 1/2, y + 1/2) Box 2: (x,y) $\rightarrow$ (x +2, y + 2)
Box 1: (x,y) $\rightarrow$ (x - 1/2, y - 1/2) Box 2: (x,y) $\rightarrow$ (x -2, y - 2)
Box 1: (x,y) $\rightarrow$ (2x, 2y) Box 2: (x,y) $\rightarrow$ (1/2x, 1/2y )
Box 1: (x,y) $\rightarrow$ (1/2x, 1/2y) Box 2: (x,y) $\rightarrow$ (2x, 2y)
300s
Q8
Which mapping represents y as a function of x?
300s
Q9
Polygon A has an area of 27r square meters. Polygon A is dilated by a scale factor of 3 to create Polygon B? What is the area in square meters of Polygon B?
9r square meters
243r square meters
81r square meters
729r square meters
300s
Q10
Jessica baked 72 cookies and sold x cookies. Max baked 36 cookies and sold half as many cookies as Jessica did. How many cookies did Jessica sell if they each had the same number of cookies left over?
18
72
24
36
300s
Q11
Quadrilateral KLMN is similar to quadrilateral TUVW. Side lengths are given in centimeters. Which proportion must be true?
300s
Q12
Jerri paid $2.52 for 6 oranges. Each orange costs the same amount. Which function can be used to find the total cost in dollars, c, for purchasing n oranges?
c=15.12n
c=0.42n
c=2.52n
c=6n
300s
Q13
Based on the triangles shown, which similarity statement about the fourth pair of triangles is true and can be sued to complete the table?
30s

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