I rly rly need this its for a grade and i need help asap ! :(

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Determine if the equation defines y as a function of x: 2xy = 1. yes o no

An amusement park manager determined that about 23 of all customers would wait in long lines to ride the new roller coaster. which simulation could not be used to answer questions about whether a customer would wait?