



 
Hi Barb, Any quadratic function will have exactly one yintercept. Parabolae (the shape of quadratic functions) infinity either increase or decrease so there has to be a yvalue where x=0. Think of the xaxis as a horizontal line, how many times could a horizontal line cross a parabola? A horizontal line will intersect a parabola 0, 1 or 2 times so that is the possible number of intercepts. Hope this helps, Janice
 


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