What is the y-intercept of the following equation? y= -2/3x -1

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept

Which is the focus of a parabola with equation y2=4x