Practice problem
Which of the following quadratic graphs open upward?
y=x2y = x^2y=x2
y=100000−x2y = 100000 - x^2y=100000−x2
y=0.001x2−1000x−1000y = 0.001x^2 - 1000x - 1000y=0.001x2−1000x−1000
y=−0.01x2y = -0.01x^2y=−0.01x2
Type a concept, like “slope” or “photosynthesis”.
