Math 9

Find the graph of  $y=x^2$  

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Simplify:

• -4x - 3
• x² - 3
• -4x² - 6x
• -4x - 6

Tags

CCSS.7.EE.A.1

Which of the following is a quadratic equation?

• 3x² + 5r – 1

• 5t – 8 = 9

• x² + 4x -6 = 0

• 4x² – 6x ≤ 2

It is a polynomial equation of degree two that can be written in the form of ax² + bx + c = 0, where a, b, and c are real numbers and a ≠ 0.

• Linear Equation

• Linear Inequality

• Quadratic Equation

• Quadratic Inequality

What is a in the quadratic equation 2x² + 8x + 10 = 0?

• 8x

• 2

• 8

• 10

What is 2x ( x - 6) = 10 in standard form of quadratic equation?

• 2x² + 2x +10=0

• 2x² +12x+10=0

• 2x² – 12x -10 = 0

• 2x² +12x +10 =0

What is a, b, and c for this quadratic equation -4x²–2x+2= 0?

• a = -4, b = -2, c= 2

• a = 4, b = 2, c= 2

• a =-4, b = -2, c=

• a =-4, b = 2, c= 0

Which of the following is NOT a quadratic equation?

• x² – 5x + 3 =0

• (x+6) (x-6) =-3x

• 6x – x = 10

• ( x-2)² + 6=0

The roots of a quadratic equation are -5 and 3. Which of the following quadratic equations has these roots?

• $x^2-8x+15=0$

• $x^2+8x+15=0$

• $x^2-2x-15=0$

• $x^2+2x-15=0$

The sum of two numbers is 14 and their product is 45. Which of the following equations can help us find the two numbers?

• x² +14x -45 = 0

• -x² +45x –14 =0

• x² - 14x + 45 = 0

• x² + 45x –14 =0