Q1_Summative Test [Math 9, SY 2021-2022]

Quiz by Lilibeth Pulido

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- Q1
Which of the following equations is NOT an example of a quadratic equation?

$2r^2+4r+1=0$

$x^2-2x+1=0$

$3v^2-2v=20$

$5x+2=11$

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- Q7
Which of the following holds true for completing the square?

I. One side of the equation is a perfect square trinomial.

II. It can be solve by transforming the equation into .

III. The constant term is the square of one-half the coefficient of a.

IV. Applying the distributive property of multiplication over addition to determine the solution set.

I

III

IV

II

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- Q11
The product of the roots of quadratic equation is equal to the negation of the coefficient of the second term, divided by the leading coefficient.

Often True

Sometimes True

Never True

Always True

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- Q19
The floor of an audio visual room has to be tiled completely. If the length is 7 m longer than its width and its area is more than 800 sq m. How wide is the AVR?

27 m

32 m

30 m

25 m

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Which of the following inequalities is described by the graph?

$f(x)^2+bx+c\; math>$

$f(x)>ax^2+bx+c$

$f(x)\backslash le\; ax^2+bx+c$

$f(x)\backslash ge\; ax^2+bx+c$

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