Answer:
Step-by-step explanation:
<u>Dilation is applied by the rule:</u>
- (x, y) → (kx, ky), where k is the scale factor
<u>We have</u>
- (x, y) = (-2, 3) and (kx, ky) = (-8, 12)
<u>Substitute and solve for k</u>
- -8 = -2k and 12 = 3k ⇒ k = 4
<u>So the rule is</u>
Answer:
C
Step-by-step explanation:
The middle of the plot falls at 9, making this statement true. None of the others make sense. Good luck!
Answer:
-20
Step-by-step explanation:
Its -20 on the number line
The area of the other polygon is
explanation
If two triangles are similar , then the ratio of their corresponding sides will be equal to the ratio of their areas. Here the given triangles are similar which means the ratio of their areas will be equal to the ratio of their corresponding sides.
The side length of the first triangle=4cm
Side length of the second triangle=12 cm
Area of the first triangle=
Let the area of the second triangle be A/
The area of the second triangle =
=> 5x + 9 = 4
Adding - 9 on both sides,
=> 5x + 9 - 9 = 4 - 9
=> 5x = - 5
Divide by 5 on both sides,
=> x = - 1
Hence the value of the variable x is - 1