What does (0,0) represent in terms of the situation being described by the graph created part (f)

Which of the following is true for the relation f(x)=2x^2+1

Astore sells two types of radios. one type sells $87 and the other for $119. if 25 were sold and the sales were $2495, how many of the $87 radios were sold a) 5 b) 20 c) 15 d)10

Solutions for 2x+7 less than or equal to 3x-5