Talk about math being applicable to real life.
|Mathematics and Statistics Assessment||Plane Geometry|
|Plane Geometry||Plane figures (triangles, rectangles, parallelograms, trapezoids, circles, polygons)|
If we imagine the cows’ situation on a coordinate plane…
…it might look something like this. Plus, it’s much more appetizing to view
it as a graph than to see the actual field. Trust us on this one.
So which cow is going to be in Bossy’s good graces?
In other words, which cow is farthest away from Bossy, and her… leftovers?
To figure it out, we’re going to have to rely on one of those coordinate geometry formulas
we love so much. In this case, we want to find the distance
between two foul-smelling points, so we’ll need…
… “distance equals the square root of x1 minus x2 squared, plus y1 minus y2 squared.”
We may also need some nose plugs. Ever heard of a cow pie?
Well, we can find the distance between Bossy and each of the five cows by substituting
“x2, y2 equals zero, zero” into the distance formula…
…because Bossy is at the origin, or “zero, zero.”
Basically, it's like “x2, y2” doesn't even exist.
Then it’s just a matter of plugging in each cow’s coordinates.
Which would be easier if each of them was equipped with a GPS.
The coordinates of point A are (-2,3). So when we plug those coordinates into our formula,
it gives us the distance from that cow to Bossy which equals… the square root of 13.
The coordinates of point B are (2, 2)… making the distance the square root of 8.
Point C is (-3, -3), which gives us the square root of 18…
…Point D at (0, -4) gives us 4… …and point E at (2, -1) gives us the square
root of 5. The largest of those is the square root of
18… or three square root of two… …which means that Betty, the cow at Point
C, is the farthest from Bossy. Lucky Betty. Let’s just hope she’s not