Math 9-Quadratic-1st quarter

Front

Which of the given equation is linear?
Options: 2x²+4x-10=0, 4x+8=5, x(x-4)=6, x²+5x-14=0

Back

4x+8=5

Front

Which of the following is a quadratic equation?
Options: 25 - r² = 4r, 2x² - 4x + 8, 2(4x - 3) = 0, 2y - 4x =10

Back

25 - r² = 4r

Front

Which quadratic equation can be solved easily by extracting the square roots? Options: x² + 7x +12 = 0, 2w² + 7w - 3 = 0, 3v² + 2v - 8 = 0, 4t² - 9 = 0

Back

4t² - 9 = 0

Front

Which quadratic equation is equal to x (x + 3) - 5 = 0? Options: x² + 3x + 5 = 0, x² + 3x - 5 = 0, x² - 3x - 5 = 0, x² - 3x + 5 = 0

Back

x² + 3x - 5 = 0

Front

Nature of the roots of a quadratic equation if the discriminant is zero?

Back

The roots are rational and equal

Front

Nature of the roots of a quadratic equation if the discriminant is less than zero or negative?

Back

The roots are not real

Front

In the equation 2x² - 5x + 1 = 0, what is the value of a, b and c?

Back

a = 2 , b = -5 , c = 1

Front

Method of solving quadratic equations in the form ax² + bx = c

Back

Completing the square

Front

Solution set of the equation y = x² + 3x + 2?

Back

-1 and -2

Front

What is the graph of a quadratic function?

Back

parabola