Can someone solve point-slope lines and show work? I’m confused

These question are hard can you me with answers

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.

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).