For the points you've given, the correct answer is not listed! One way to solve the problem is just to use a graph -- the points are not far away from the origin, and they have whole number coordinates. (See graph.)
Slopt = "rise" / "run" so to get from (2, 2) to (4, 3), you "rise" +1 and "run" +2. The slope is 1/2.
If the points are (2, 2) and (4, 3), then the slope would be 2.
You can always use a formula to find the slope:
which tells the slope of a line joining points
and
.
The formula says
Slope = (second y minus first y) / (second x minus first x)
It always works unless
, in which case the line is vertical and has NO defined slope.
12.56 because 12.56=2πr, so solve for r and you get 2=r. So you plug in 2 for r in the area formula which is A=πr^2, which will give you A=π(2^2), which is A=π(4), which will give you A=12.56
Answer:
y=8
Step-by-step explanation:
7y-20=3y+12
7y-3y=12+20
4y/4=32/4
y=8
Answer: Y = 7/8x+ 2.25
Step-by-step explanation:
- you would subtract both y 7
- subtract both x -8
- y=7/8x+b
- 3= 7/8 x-2 +b
- 3 = 1.75 + b
- -1.75 -1.75
- 2.25 = b