2. This is where the graph crosses the x-axis.
x-intercept
y-intercept

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults. how many students and adults went if the ticket charge was $42.75