October 17

Week 6 in precalc 11

This week in math 11 I learned about the quadratic formula.

the quadratic formula looks like this :

Image result for quadratic formula

in order to fill in the variables you need to know what is what.

so when you’re looking at an equation it will look like

ax^2 + bx + c = 0.

your a variable is obviously the number in front of the x^2 but if there is no number in front of it, a = 1. b is the second variable and it is the one in the middle of the equation and c is separate on its own.

It takes more time then completing the square and factoring but it is a good way to get the correct answer since you fill in all the variables and get a more direct answer.