The graph of the piecewise function f(x) is shown. What is the range of f(x)

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made

Through non-collinear points there is exactly one plane.