Answer:
it should be 2 as your answer
Answer:
The answer is rotation 270° about the origin
Step-by-step explanation:
If (x , y) is a point in xy-coordinates
If the point rotate about the origin ⇒ (The positive direction is anti-clockwise)
1- 90°
Its image is (-y , x)
2- 180°
Its image is (-x , -y)
3- 270°
Its image is (y , -x)
If we assume A is (1 , 7)
1- ⇒ (-7 , 1) ⇒ rotation 90° about the origin
2- ⇒ (-1 , -7) ⇒ rotation 180° about the origin
3- ⇒ (7 , -1) ⇒ rotation 270° about the origin
∵ x-coordinate of point A small and +ve and y-coordinate large and +ve
∵ x-coordinate of point A' large and +ve and y-coordinate small and -ve
∴ The answer is rotation 270° about the origin
∴ The answer is rotation 270° about the origin
<span>-404°+360 = -44
-44+360 = 316</span><span>°
hope that helps
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Answer:
x=4
Step-by-step explanation:
2^x-7=9
Add 7 to each side
2^x-7+7=9+7
2^x = 16
Change 16 to a power of 2 16 = 2^4
2^x = 2^4
The bases are the same, so the powers are the same
x=4