Quadratic STAAR Questions

Which graph best represents y = −x² + 6x − 1? Reminder: Use desmos

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Which expression is equivalent to 24x² − 22x + 5?

• (12x + 5)(2x + 1)

• (8x − 5)(3x − 1)

• (12x − 5)(2x − 1)

• (8x + 5)(3x + 1)

Which coordinates best represent the vertex of the graph?

• (2.4, 0)

• (0, -1)

• (-0.4, 0)

• (1, -2)

which of these best represents the domain of f?

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• All real numbers

• y > 5.5

• All real numbers less than -3 or greater than 2

Which statement about k(x) = -x²-2x+15 is true?

• The zeros are -3 and 5, because k(x) = -(x+3)(x-5).

• The zeros are -5 and 3, because k(x) = -(x+5)(x-3).

• The zeros are -5 and -3, because k(x) = -(x+5)(x+3).

• The zeros are 3 and 5, because k(x) = -(x-3)(x-5).

The area of a rectangular trampoline is 112ft². The length of the trampoline is 6ft greater than the width of the trampoline. This situation can be represented by the equation w² +6w -112 = 0. What is the width of the trampoline in feet?

• 7 ft

• 16 ft

• 8 ft

• 14 ft

• A/F

• B/G

• C/H

• D/J

• A/F

• B/G

• C/H

• D/J

• A/F

• B/G

• C/H

• D/J

• A/F

• B/G

• C/H

• D/J