Q1. REVIEWER

Which of the following equations represent quadratic function?

• y=2x²+5x−3

• y=3x²+x−8

• x³+2x−15=0

• y=5x−2

Which of the following illustrates a quadratic inequality?

• 5m+1<20

• x²−3x=1

• x²+5x+35>0

• x(x−1)=2

Which of the following statements illustrate quadratic inequality?

• The perimeter of the lot is 100 meters.

• The width of the floor is 5 feet less than its length.

• The area of square garden is at least 35 square feet.

• The length of the swimming pool is at most 8 meters.

Which of the following situations does NOT show a quadratic function?

• Shooting a ball.

• Throwing an object.

• Targeting an object upward.

• A car driving on a flat road.

Which of the following illustrations does NOT model a quadratic function?

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Which of the following is the vertex of a quadratic function?

• y=a(x+h)²+k

• y=a(x+h)²−k

• y=a(x−h)²−k

• y=a(x−h)²+k

Which of the following quadratic functions are in vertex form?

• y=(x+1)²+2

• y=x²−4x+45

• y=(x+5)(x+7)

• y=2x+1

Which of the following tables represents a quadratic function?

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Which of the following could be the graph of quadratic function?

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What is y=(x−1)²+4 in standard form?

• y=x²−2x+5

• y=x²−2x−5

• y=x²−x−5

• y=x²−x+5