Math Help - Urgent Honors Algebra II help.

Need Help with math problems Please I really appreciate your help.

1. If 3x-5=10k, then 3x/5-1=___
a. k b. 2k c. 3k d. 4k e. 5k
I got A for number 1

2.The x-intercept is 4 and the y-intercept is 2. Find the equation of the line.
a.y=(1/2x)+2 b.y=(1/2x)-2 c.y=(-1/2x)+2 d.y=(-1/2x)-2 e.y=(-1/2x)+4
I got C for number 2

3.What is the equation of the perpendicular bisector of the line segment which has as its endpoitns the points A(-2,3) and B(5,-4)?
a. x+y-2=0 b.-x+y+2=0 x+y+1=0 d.x+y-1=0 e.-x+y-2=0
I got B for number 3

4. If the point (3,-4) is on the graph of y=f(x), then which of the following points is on the graph of G(x)=f(x-4)-3?
a.(7,-4) b.(3,-7) c.(-1,-7) d.(7,-7) e.(0,-8)


If I missed any of these I would be very thankful if you could give me the right answer and explain it. I know this is a tall order, but I really need this.Its due tommorow so I need help as soon as I can get it.

Once again, I really appreciate your input and help.


-Aaron

For number 1: Notice on this problem that the coefficient in your original equation is 3, but then it becomes 3/5. That should give you a hint that you should divide both sides of the equation by 5, which leads you to (B).

If you have a graphing calculator, you can figure out most of these problems by graphing the various equations.

Sorry, submitted too quickly...
If you have one, reply back, and I'll tell you how to use it to solve the problems.