# MTH220T Phoenix Week 1 The Quadratic Equation

Post a 150-word response to one the discussion prompts by Day 5 in the discussion area below:

Prompt 1

View one of the following Week 1 videos:

• In the process of simplifying a radical expression, a student has provided you a decimal number as an answer. Is the student’s answer correct? Why or why not? Explain your answer.

Prompt 2

View one of the following Week 1 videos:

• What is the difference between radical equations and fractional exponents? How are they alike? Provide an example in your explanation.

Prompt 3

View the following Week 1 video:

• Is finding the distance between 2 points in the rectangular coordinate system related to the Pythagorean theorem? Why or why not? Provide an example in your answer.

Prompt 4

View the following Week 1 video:

• When using the quadratic formula to solve quadratic equations, how do you know how many solutions you should have in the end? Provide an example in your explanation.

Prompt 5

View one the following Week 1 videos:

• Explain the method used to solve an equation containing radical expressions. Why is it necessary to check the solutions for such an equation? Provide an example in your explanation.