michaelearth wrote:1. What are the answers to the following equation when trying to complete the square:

3x^2+7x=-9

To learn how to solve quadratics by completing the square, try

here. Note that you can check your answers by using the more-reliable

Quadratic Formula.

michaelearth wrote:2. Determine the number of solutions in this equation: -4x^2-3x+7=0

Since this asks you only for the

number of solutions, not for the actual values of the solutions, you need to use the discriminant (the stuff inside the square root in

the Quadratic Formula) to determine this. I don't know if you've studied

complex numbers yet. If not, you'll only need to use what you've learned about positive and zero values. In either case, the three possible outcomes are listed and explained

here.

michaelearth wrote:3. Graph: y=x^2-4x+13

To learn how to graph quadratics, try

here.

michaelearth wrote:a. What is the Discrinate?

b. How many solutions?

c. What type of solutions does this equation have?

When the assignment misspells the word, it's no surprise when the students get stuck!

As displayed above, the intended term is of course "discriminant". So do the same for these parts as you did for part (2) above.