Step-by-step explanation:
As seen from the graph, the curve crosses the x-axis when x = -1 and x = 1. The y-intercept of the curve is -1.
Hence, the quadratic equation of the curve is y = x^2 - 1.
Answer:
3.75
Step-by-step explanation:
By Basic Proportionality Theorem:

Just as in base 10, when you get to the highest single digit and add 1, you carry into the next higher place value. If your number were 129 in base 10, the next number in sequence is 130. If your number were 1399, the next number in sequence would be 1400.

The answer is A, because subtracting a negative is the same as addition.