jzane1182
05.02.2020 •
Mathematics
What is the equation in point slope form of the line that passes through the point (3,1) and has a slope of -2?
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Ответ:
Question:
Four points are drawn on the coordinate plane and connected with straight lines to form a rectangle. Three of the vertices of the rectangle are located at (2, 1), (2, 4), and (-4, 4).
a.What are the coordinates of the fourth vertex of the rectangle?
b.What are the dimensions of the rectangle?
c.What is the area of the rectangle?
A)the coordinates of the fourth vertex of the rectangle is (-4,1)
B)The dimension of the rectangle is 6 by 3
C) The area of the rectangle is 18 square units
Step-by-step explanation:
A)The coordinates of the fourth vertex of the rectangle
let (2, 1) be point A, (2, 4) be point B and (-4, 4)be point D.
we can see that A and B have the same x value i.e 2, and it is most likely that this rectangle is not slanted as B and C have the same y value.
From point B to point A, the y value decreased by 3, so we can say that from point C to point D the y value should also decreased by 3 units. We can therefore deduce that the y value of D=(4+3)=1. Now for the x values...
From point B to point D the x value decreased by 6, so we can say that the x value should also decrease by 6 from point A to point D... Therefore the x value of D is (2-6)= -4 (Which is the same x value as point C)
The coordinate is (-4,1)
B) The dimensions of the rectangle
We can find the dimensions that is the length and trhe breadth with the coordinates
Let the width of the rectangle be x
then x =
x=
x=
x=
x=3 units
Let the length of the rectangle be y
y=
y=
y=
y=
y=6 units
C) The area of the rectangle
The are of the rectangle is the product of it6s length and width
Area =
Area =
Area = 18 square units