Answer:
-1 moves the graph down one.
-2 flips the function over the x-axis and causes a vertical stretch by a factor of 2.
Honestly idk you’ll need a better way to explain this
A² = b² + c² - 2bc cosA
a² = 10² + 14² - 2*10*14 cos54
a² = 100 + 196 - 280 * cos54
a =
a = 11.46