Domain+ range=no clue!

[Kassy]

I'm a senior this year and I've started taking advanced math which is also called pre calculus. I've never had a problem with math. I usually pass with an "A" or "B". but this year I'm having trouble. I failed our first test. What we're working on is finding the domain, range, increasing, decreasing, local min, & local max of a graph. I need help on determining that. I find this very difficult. I don't know if it's the new teacher I have and how she teach or if it's just the new material that I'm unfamiliar with. When I try I always get things backwards. And i don't understand how on graph how a graph could have three domains and only two ranges. I wouldn't say the whole thing is confusing, but for the most part it is.

 

[Deleted member 4993]

I'm a senior this year and I've started taking advanced math which is also called pre calculus. I've never had a problem with math. I usually pass with an "A" or "B". but this year I'm having trouble. I failed our first test. What we're working on is finding the domain, range, increasing, decreasing, local min, & local max of a graph. I need help on determining that. I find this very difficult. I don't know if it's the new teacher I have and how she teach or if it's just the new material that I'm unfamiliar with. When I try I always get things backwards. And i don't understand how on graph how a graph could have three domains and only two ranges. I wouldn't say the whole thing is confusing, but for the most part it is.

Following is a good web-site to review your fundamentals:

http://www.purplemath.com/modules/fcns2.htm