A part of a quadratic function f is graphed on the grid. What is the domain of the part of the function shown?

All real numbers greater than or equal to -1.

All real numbers greater than or equal to 1.

All real numbers greater than or equal to -1 and less than or equal to 5.

Which statement about $$f\left(x\right)=12x^2-36x+27$$ is true?

The only zero is $$\frac{3}{2}$$ because $$f\left(x\right)=3\left(2x-3\right)^2$$ .

The zeros are $$\pm\frac{2}{3}$$ because $$f\left(x\right)=3\left(2x-3\right)\left(2x+3\right)$$ .

The zeros are $$\pm\frac{3}{2}$$ because $$f\left(x\right)=3\left(2x-3\right)\left(2x+3\right)$$ .

The only zero is $$\frac{2}{3}$$ because $$f\left(x\right)=3\left(2x-3\right)^2$$ .

The graph of a quadratic function is shown on the grid. Which statement is best supported by the graph?

The equation of the axis of symmetry of the graph is x = -3.

The minimum value of the function is 9.

The vertex of the graph is (9, -3),

A function is shown. $$f\left(x\right)=\frac{2}{5}\left(x-25\right)^2+13$$ What is the range of the function?

All real numbers greater than or equal to 13

All real numbers greater than or equal to 25

All real numbers greater than or equal to 10

The graph of a linear function is shown on the grid. Which statement is best supported by the graph of the function?

The x-intercept of the graph is 6.

The slope of the graph is $$\frac{1}{2}$$ .

The zero of the function is $$\frac{1}{2}$$ .

The y-intercept of the graph is 6.

A student borrowed $480 from a friend. He agreed to make monthly payments of $96 with no interest until the loan balance was paid off. The function shown models this situation, where f(x) represents the remaining loan balance in dollars after the student has made x monthly payments. $$f\left(x\right)=480-96x$$ Which statements are true about the domain and range of the function for this situation? Select TWO correct answers.

The domain of the function is {0 1, 2, 3, 4, 5}

The range of the function is {0, 96, 192, 288, 384, 480}

The range of the function is {0 1, 2, 3, 4, 5}

The domain of the function is {0, 96, 192, 288, 384, 480}

The domain of the function is the set of all real numbers.

A line is graphed on a coordinate grid. Which statement best describes the line?

The equation of the line is x = 6, and the slope is undefined.

The equation of the line is x = 6, and the slope is equal to 0.

The equation of the line is y = 6, and the slope is undefined.

The equation of the line is y = 6, and the slope is equal to 0.

Which statement about the graph of the function $$f\left(x\right)=35\left(1.4\right)^x$$ is true?

The y-intercept of the function is (0, 35).

The x-intercept of the function is (1.4, 0).

The graph of the function is decreasing for all values of x.

The asymptote of the function is y = 0.4.

STAAR Algebra Practice Test 2023

8th Grade

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51 Qs

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STAAR Algebra Practice Test 2023

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8th Grade

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Practice Problem

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Hard

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AI.9.11.B, AI.9.3.B, AI.9.10.E

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Katherine Meis

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51 questions

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MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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AI.9.11.B

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The graphs of f and g are not parallel, and the graph of f is translated 23 units up to create the graph of g.

The graphs of f and g are not parallel, and the graph of f is translated 23 units down to create the graph of g.

The graphs of f and g are parallel, and the graph of f is translated 23 units up to create the graph of g.

The graphs of f and g are parallel, and the graph of f is translated 23 units down to create the graph of g.

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AI.9.3.E

HOTSPOT QUESTION

5 mins • 1 pt

A graph of a quadratic function is shown. What are the x-intercepts of the function?
Select the TWO correct circles that represent the points.

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AI.9.7.A

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

An artist bought a set of 10 paintbrushes that contained x small paintbrushes and y large paintbrushes. The number of small paintbrushes in the set was 4 times the number of large paintbrushes in the set.
Which system of equations can be used to find the numbers of small paintbrushes and large paintbrushes in the set?

x + y = 10

x = 4y

x - y = 10

x = 4y

x + y = 10

y = 4x

x - y = 10

y = 4x

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AI.9.2.I

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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AI.9.9.D

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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AI.9.6.C

DROPDOWN QUESTION

5 mins • 1 pt

$320

decreases

10%

$288

$352

increases

90%

110%

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AI.9.9.B

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STAAR Algebra Practice Test 2023

51 questions

A graph of a quadratic function is shown. What are the x-intercepts of the function?Select the TWO correct circles that represent the points.

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A graph of a quadratic function is shown. What are the x-intercepts of the function?
Select the TWO correct circles that represent the points.