Math 9

What is the meaning of the Latin word "quadratus"

• Quadratic

• Cube

• Squared

 $2x^2=−3x+1$  

What is the standard form. 

•  $2x^2+3x+1=0$  

•  $2x^2+3x−1=0$  

•  $2x^2−3x+1=0$  

How many solutions are there if the discriminant is positive.

• 0
• 1
• 2
• Infinite

What is the formula in finding the SUM of the roots of quadratic equation?

• 
  

  $-\frac{b}{a}$

• $\frac{c}{a}$
  

What is the SUM of the roots of quadratic equation x² + 13x + 42 = 0?

• -42

• -13

• 13

• 42

Which of the following is the transformed Quadratic Equation of the given equation?

• x² - 5x + 1 = 0

• x² + 5x + 4 = 0

• x² - 4x + 5 = 0

• x² + 4x + 6 = 0

Find two consecutive integers whose product is 42. Which equation represents the given problem?

• a.   x + 2x = 42

• b.   x( 2x) = 42

• c.   x(x+1) = 42

•  $d.\ \ \ \frac{x}{x+1}$  

Determine the solution of the given quadratic inequality.

 $\left(x+2\right)\left(2x-3\right)>0$  

•  $x<-2\ or\ x>\frac{3}{2}$  

•  $-2<x<\frac{3}{2}$  

Determine the solution of the given quadratic inequality.

 $\left(x-4\right)\left(4x-5\right)\ge0$  

•  $x\le\frac{5}{4}\ or\ x\ge4$  

•  $\frac{5}{4}\le x\le4$  

1) “A car travels a distance of d kilometers in t hours. What type of variation illustrates this situation?

• Direct Variation

• Inverse Variation

• Joint Variation

• Combined Variation