What are they asking here? For some reason this math stuff just confuses me beyond belief.
Find the equation for each of the following items below:
a. A line that passes through (1, 1) and is perpendicular to the line 3x+4Y=12.
------- oops, didn't read carefully enough, that "perpendicular" part will get you every time. Rick's got it right.
b. A line that passes through (5,4) and has a slope of 2.
-------- same drill, but this time they give you the point and the slope, substitute in and solve
c. A line that passes through (9,8) and has a slope of -1.
------- ditto
d. A line that passes though the points (1,2) and (12,24)
------- now you have to use the info on this page
http://www.purplemath.com/modules/strtlneq.htm and then scroll down to where it says " * Find the equation of the line that passes through the points (–2, 4) and (1, 2)."
e. A circle with a radius of 9 and a midpoint at (3,3)
------ check "example 1"
http://www.analyzemath.com/CircleEq/Tutorials.html
Solve for the following items:
a. The point on the x-axis that is equidistant (equal distance) from (10,4) and (6,2).
b. The distance between the points (4,4) and (20,4).
-------
http://www.purplemath.com/modules/distform.htm
c. The distance between the points (1,4) and (19,5).
------- ditto
d. The midpoint between (12, 4) and (18, 6)
-------
http://www.purplemath.com/modules/midpoint.htm
e. The midpoint between (-8, -6) and (25, 3)
------- ditto