Proving Theorems with Coordinate Geometry
Geometry · Flashcards
GEOMETRY · FLASHCARDS
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QUESTION
What is the midpoint formula of segment endpoints $ (
x
1
x_1
x
1
,
y
1
y_1
y
1
) $ and $ (
x
2
x_2
x
2
,
y
2
y_2
y
2
) $?
QUESTION
Which option is the slope of the line through $ (1,-2) $ and $ (5,6) $?
QUESTION
Identify whether
(
2
,
1
)
(2,1)
(
2
,
1
)
lies on the circle
x
2
+
y
2
=
4
x^2+y^2=4
x
2
+
y
2
=
4
.
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ANSWER
No, since
2
2
+
1
2
=
5
≠
4
2^2+1^2=5\neq^4
2
2
+
1
2
=
5
=
4
. Substitution:
4
+
1
=
5
≠
4
4 + 1 = 5 \neq 4
4
+
1
=
5
=
4
.
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