And the last of it!
1.)Find the equation for the linear function:
2. Sketch the graph of
3. Sketch the graph of
Please Help!
1.)Factor the expression:
2.)Factor the expression completely:
3.)Solve the equation: 4x^2-2x=0
4.)The length of a rectangular garden is 25 feet longer than the width. If it covers an area of 2600 sq. ft., find the length and width.
5.)x and y vary inversely. If x=2.4 when y=130, find and equation relating x and y.
6.)Find the domain of the rational expression: (over) x^2+4x" alt="x^2+4 (over) x^2+4x" />
7.)Simplify: (over) 5y^2x^2" alt="3x^3(y-3) (over) 5y^2x^2" />
8.) Divide
9.) Is a function defined by {(-2,3), (0,1), (2,-2), (4,2)}? If so state it's domain.
10.) Find
You will have to show some work... You will learn only if you work out and get stuck somewhere. We will tell you how to continue....
Lets start:
1)Factor the expression:
Hint: . Hmm it looks familiar.... Have you ever seen what is?
2.)Factor the expression completely:
Hint: Let , then
Does remind you of anything?
3.)Solve the equation:
Hint:
Use this fact: for real numbers a and b, if ab = 0, then a=0 or b=0
4)The length of a rectangular garden is 25 feet longer than the width. If it covers an area of 2600 sq. ft., find the length and width.
Hint: Denote length by l and width by w.
Now solve the quadratic...
Try these... If you did not understand anything.. ask
Then I will help you with remaining...
Good luck