Would someone be willing to check 12 math questions that I did, and help me with the last one? I will medal and fan :)
1. Line BC contains points B (4, −5) and C (3, 2). Line DE contains points D (2, 0) and E (9, 1). Lines BC and DE are My answer is: Perpendicular
@Loser66 Is this one right?
yup
2. Find x value for the point that splits segment CD in half if point C is located at (−2, 4) and point D is located at (3, 7). My answer is: 5.5
The question is x value, and you have formula to find it, recheck.
YOur answer is y value, not x
0.5?
yup
3. Point A is located at (0, 4) and point B is located at (−2, −3). Find the x value for the point that is 1 over 4 the distance from point A to point B. My answer is: -0.5
yup
4. Line AB contains points A (8, −4) and B (1, −5). The slope of line AB is My answer is: -7
check, not that
\[\frac{ -1 }{ 7 }\]
yup
5. An isosceles triangle has My answer: At least two congruent sides
The other choices are Two sides that are perpendicular Three sides with the same length Two sides that are parallel
yup
The slope formula can be used to prove that a quadrilateral has My answer: Parallel sides
The other choices are Congruent sides Proportional angles Congruent angles
nope, this is called quadrilateral but there is no // sides in it. |dw:1432416031064:dw|
So I'm not sure what it would be.
congruent angles
Okay The equation of line GH is y = 4x − 3. Write an equation of a line perpendicular to line GH in slope-intercept form that contains point (2, 3). My answer: \[\frac{ -1 }{ 4 }x+\frac{ 7 }{ 2 }\]
yup
Quadrilateral ABCD has diagonals that are congruent and perpendicular to each other. What classification can be given to ABCD? I was stuck between square and rhombus. I think it's a rhombus though.
I am with you since no information about sides.
HOld on
Segment YW is an altitude of triangle XYZ. Find the area of the triangle. I'm not sure how to do this one
it is square because "diagonals congruent", in rhombus, we don't have this property |dw:1432416501371:dw|
Area = (1/2) base * height.
|dw:1432416637968:dw|
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