Answer:
D
Step-by-step explanation:
Under a clockwise rotation about the origin of 90°
a point (x, y ) → (y, - x ) , thus
X(- 1, - 3 ) → X'(- 3, 1 )
Y(0, 0 ) → Y'(0, 0 )
Z(1, - 3 ) → Z'(- 3, - 1 )
The answer is -4k^2 - 21k - 20! so sorry if I’m wrong but it’s the answer I got :>
76.
If the number after the decimal is below five, you round down. If the number is above five, you round up. 76 is your answer.