Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Need Geometry HW help. PLEASE!! (9th grade)
#1
Can you guys please help me answer these questions? My teacher actually grades them like a quiz, so please help!

1) Choose two points that have a slope between them that is perpendicular to the line with points (0,-4) and (3,-10).

2) Choose two points that have the same midpoint as the points (-1,2) and (5,-4)

3) Start with a piece of paper. Cut it into 5 pieces. Take any one of the pieces and cut it into 5 pieces. Then, take any of those pieces and cut it into 5 pieces. Derive a rule for the number of pieces you have after the nth time you repeat the cutting process.

4) What geometric figure is bounded by the lines 3x + 4y = 6 , 4x - 3y = 18, the x-axis, and the y-axis.

5) The length of a photo is 1cm less than twice the width. The area is 28cm2 (squared). Find the range of values for z, the length of the third side.

6) The lengths of two sides of a triangle are 6ft and 13ft. Write an inequality to represent the range of values for z, the length of the third side.

7) One side of a square has coordinates (1,2) and (-3,5). Write two points that could represent the other coordinates for the vertices of the square.

Even if you can help with one or two problems I would appreciate it a ton... PLEASE
Reply
#2
most of these are fairly easy il help in a couple of hours when I get home =)
slowly getting better
Reply
#3
The main thing to do here is use point-slope form to make the line, and you'll need the slope, and 2 coordinate points. The slope can be found from a slope intercept equation, where it is M. It can be found from slope formula, and it can be found as the negative reciprical to a perpindicular line and the same as a parallel line. The 2 coordinate points are usually quite obvious.
Reply


Possibly Related Threads…
Thread Author Replies Views Last Post
  Geometry help? (two column proofs etc.) Note 1 1,313 01-09-2013, 08:41 AM
Last Post: Dr.Cooper
  Geometry DaringFever 0 1,098 10-11-2011, 09:30 PM
Last Post: DaringFever
  Offering help for Geometry and Below Ambitious 0 1,124 08-28-2011, 03:03 AM
Last Post: Ambitious
  Geometry, and a logic question Brandenx781 5 3,654 05-06-2011, 06:02 PM
Last Post: BlackChaos
  I will help with geometry and below eXpLiiCiTâ„¢ 3 1,274 10-23-2010, 06:29 PM
Last Post: Hustler

Forum Jump:


Users browsing this thread: 1 Guest(s)