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Sagot :
Answer:
- See below
Step-by-step explanation:
Given points P and Q have same x-coordinate but different y- coordinates.
The distance between P and Q is the difference of y- coordinates:
- PQ = 4 - (-4) = 8 units = 8 cm
The area is 64 cm², it means the adjacent sides are
- PS = QR = 64/8 = 8 cm
a)
If the points R and S are to the left, their coordinates are
- S = (-1 - 8, 4- 0) = (- 9, 4)
- R = (-1 - 8, - 4 - 0) = (- 9, -4)
b)
If the points R and S are to the right, their coordinates are
- S = (-1 + 8, 4 + 0) = (7, 4)
- R = (-1 + 8, - 4 + 0) = (7, -4)
Answer:
Points R and S are to the left of Points P and Q
R = (-9, 4)
S = (-9, -4)
Points R and S are to the right of Points P and Q
R = (7, 4)
S = (7, -4)
Step-by-step explanation:
Given coordinates:
- P = (-1, 4)
- Q = (-1, -4)
Points P and Q have the same x-value.
The vertical distance between these two points is:
[tex]\begin{aligned}\implies \sf y_P-y_Q & =\sf 4-(-4)\\ & =\sf 4+4\\ & =\sf 8\:units \\ & =\sf 8\:cm\end{aligned}[/tex]
Area of a rectangle = width × length
If the area of the rectangle PQRS is 64 cm² then:
[tex]\begin{aligned} \implies \sf 64 & = \sf width \times 8\\\implies \sf width & = \sf \dfrac{64}{8}\\\implies \sf width& = \sf 8 \: cm \end{aligned}[/tex]
This means that the y-values of points R and S will be the same as points P and Q, but the x-values will either be 8 less or 8 more.
Points R and S are to the left of Points P and Q
R = (-1 - 8, 4) = (-9, 4)
S = (-1 - 8, -4) = (-9, -4)
Points R and S are to the right of Points P and Q
R = (-1 + 8, 4) = (7, 4)
S = (-1 + 8, -4) = (7, -4)
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