Re-write the quadratic function below in standard form y = -4(x – 4)2 + 7
2 answers:
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Answer:
Step-by-step explanation:
Let the point P is at the origin (0, 0).
Then the coordinates of A, B and C will be (8, 4), (-2, 2) and (4, -4) respectively.
Rule for the dilation of a point by a scale factor = k
(x, y) → (kx, ky)
If k =
Then, A(8, 4) → A'(4, 2)
B(-2, 2) → B'(-1, 1)
C(4, -4) → C'(2, -2)
Now we can plot the new image with points A', B' and C'
B = 12.61 cm solved by using the law of sines
(I included a picture, so please let me know if you get it. If not I will add a comment explaining it)
(I included a picture, so please let me know if you get it. If not I will add a comment explaining it)
Answer:
a) The measure of the reference angle is 45°
Step-by-step explanation:
Reference angle:
= 45°