Find the equation of a line passing through the origin and making a 45° angle with the positive x-ads

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

Which is a graph of a proportional relationship?