Mathematics, 24.05.2021 19:20 isa6476
PLEASE HELP AS SOON AS POSSIBLE WILL GIVE LOTS OF POINTS.
1. Which transformation would create an image and a pre-image that are similar figures? *
A. A dilation with a scale factor of 1.
B. A translation to the right and up.
C. A dilation with a scale factor of 2.
D. A reflection over the x-axis.
2. Which algebraic representation shows the effect that a reflection over the x-axis will have on the coordinates of a figure? *
A. (x, -y)
B. (-x, y)
C. (-x, -y)
D. (-y, x)
3. The coordinates below represent a triangle that was dilated. What is the scale factor?
J (-3,-12) --> J'(-2,-8)
K (-6,-15) --> K'(-4,-10)
L (-9,-12) --> L'(-6,-8)
A. 1/5
B. 2/3
C. 1/3
D. 3/2
4. Ben is going to rotate a figure in Quadrant IV 90° counterclockwise. In which Quadrant should the image be? *
A. Quadrant I
B. Quadrant II
C. Quadrant III
D. Quadrant IV
5. Luke is going to reflect point R(6, 10) over the y-axis. What are the coordinates for R’?
6. Which of the following is the correct algebraic representation for a translation 8 units right and 4 units down? *
A. (x + 8, y – 4)
B. (x – 4, y + 8)
C. (x – 8, y + 4)
D. (8x, 4y)
7. Which of the following algebraic representations shows a dilation that is an enlargement? *
A. (1/3x1/3y)
B. (0.1, 0.1)
C. (5/6x, 5/6y)
D. (5/2x, 5/2y)
8. A figure in Quadrant II was transformed, and the image is in Quadrant III. Which could NOT have been the transformation? *
A. A rotation 90° clockwise
B. A reflection over the x-axis
C. A translation down
D. A rotation 270° clockwise
Answers: 3
Mathematics, 21.06.2019 17:30
When a rectangle is dilated, how do the perimeter and area of the rectangle change?
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Choose the more precise measurement. 26.4 cm or 8.39 cm
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The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?
Answers: 2
PLEASE HELP AS SOON AS POSSIBLE WILL GIVE LOTS OF POINTS.
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