Key concepts: roots & multiplicity, end behavior, y-intercept, bounce vs. cross. Pick the best answer for each question.
Even multiplicity → graph touches x-axis and bounces back (like y = x²)
Odd multiplicity → graph crosses through x-axis (like y = x³)
End behavior is controlled by the leading coefficient × degree parity
Substitute x = 0 into f(x) to find the y-intercept instantly
Degree = sum of all multiplicities. Tells you the total shape complexity