Quadratic Equations and the Square Root Method

What is the square root method used for in quadratic equations?

• To solve equations with an X term

• To solve cubic equations

• To solve linear equations

• To solve equations without an X term

If x^2 = 64, what are the possible values of x?

• 8

• -8

• 8 and -8

• Only 0

How do you isolate x^2 in the equation 2x^2 = 200?

• Divide both sides by 2

• Multiply both sides by 2

• Add 200 to both sides

• Subtract 200 from both sides

What is the result of taking the square root of a negative number in Algebra 1?

• A complex number

• No solution

• A negative number

• A positive number

In the equation x^2 = 25/4, what is the value of x?

• Only 0

• 5/2 and -5/2

• -5/2

• 5/2

What is the reciprocal of 1/2?

• 2

• 1/2

• 0

• 1

In the falling object model, what does the variable 'H' represent?

• Velocity

• Initial height

• Ground level height

• Time

If an object is dropped from a height of 42 feet, how long does it take to hit the ground?

• 3.16 seconds

• 2.24 seconds

• 4.47 seconds

• 1.62 seconds

What is the initial height in the falling object model if a watch is dropped from a bridge 80 feet above water?

• 0 feet

• 42 feet

• 80 feet

• 100 feet

What is the main takeaway from using the square root method in solving quadratics?

• It is useful for equations without an X term

• It is not applicable to real-world problems

• It is only useful for equations with an X term

• It can solve any quadratic equation