Freshman Geometry is kickin' my butt! Please help.. ?

Question

1. A surveyor measured a building lot. She recorded the corner point of the lot as M (-80, 210), N (-80,-120), P(130, 210), and Q(130, -120). The coordinates represent the distances, in feet, from the axes of a coordinate grid. Calculate the area of the lot.

2. How does the graph of f(x) compare to the graph of f(x) + 3?

3. A stone is dropped from a cliff into a river. The function h(t) = 82 - 4.9t^2 gives the height (h) of the stone in meters (t) seconds after it is dropped. What is the height of the stone, to the nearest tenth of a meter, after 1.7 seconds?

4. Sirius is about 8.6 light years away from Earth. One light year is 9.46 x 10^15 kilometers. Find the distqance between Earth and Sirius in kilometers. Express your answer in scientific notation with 3 significant figures.

& if you could answer just ONE of them, please do so.. i mean all four would be great because i need as much help as i can get! thanks!

Answer 1

1. plot those points and do b*h

2. f(x) + 3 intercepts the y axis at 3 units higher than f(x)

3. plug 1.7 into t, so 82 - 4.9(1.7^2)

4.. just multiply 8.6 * 9.46 * 10^15