Question

pleaseeeeeeeeee helppp failing math testttttt

1) identify the mapping triangle MNP triangle EDC

A)reflection
B)translation
C)rotation
D)glide reflection

2)
Identify the mapping triangle EDC triangle PQM, look at the second picture

A)reflection
B)glide reflection
C)rotation
D)translation

3. Which letter has at least one line of symmetry?

A) L
B) G
C) A
D) J

4. What is the reflection image of (5, –3) across the y-axis?

A) (–3, 5)
B) (–5, –3)
C) (5, 3)
D) (–5, 3)



5) triangle ABC is reflected across x = 1 and y = −3. What are the coordinates of the reflection image of C after both reflections? look at the third picture

A) (4, 1)
B) (4, −1)
C) (−4, −1)
D) (−4, 1)


6) what is the image of R for a dilation with center (0,0) and a scale factor of 1 1/2? look at the forth picture.

A) (2,1)
B) (2,-1/2)
C) (6,-3/2)
D) (6,-3)



7) triangle XYZ is reflected across the line x = 3. What is the reflection image of X? look at the fifth picture

A) (7, 5)
B) (7, 3)
C)(5, 7)
D)(3, 7)

Answer 1

1. identify the mapping triangle EDC.
 
A. reflection 

2. Identify the mapping triangle EDC triangle PQM, look at the second picture.

C. rotation

3. Which letter has at least one line of symmetry?

B) G

4. What is the reflection image of (5, –3) across the y-axis?

C) (5, 3)

5) triangle ABC is reflected across x = 1 and y = −3. What are the coordinates of the reflection image of C after both reflections? look at the third picture

A) (4, 1)

6) what is the image of R for a dilation with center (0,0) and a scale factor of 1 1/2? look at the forth picture. 

D) (6,-3)

7) triangle XYZ is reflected across the line x = 3. What is the reflection image of X? look at the fifth picture

A) (7, 5)

Answer 2

Answer: 1. (A),  2. (B),  3. (B),  4. (B),  5.  (A), 6. (D) and 7. (A).

Step-by-step explanation:  We are given with five different graphs along with seven different questions. We are to answer these questions after reading the corresponding graphs.

The answers are as follows:

(1) The mapping from ΔMNP to ΔEDC is (A) reflection.

(2) The mapping from ΔEDC and ΔPQM is (B) glide reflection.

(3) The letter with at least one line of symmetry is (B) G.

(4) The reflection image of (5, -3) across Y-axis is (B) (-5,-3).

(5) The co-ordinates of the reflection image of C after both the reflections is (A) (4,1).

(6)  The image of R for a dilation with centre (0,0) and a scale factor of 3/2 is (3/2×4, 3/2×(-2)) = (6, -3), i.e., (D) (6,-3).

(7) The reflection image of X after reflecting triangle XYZ across the line x=3 is (A) (7,5).