Q66: A rectangular sheet of metal has a
Q67: If f(x)= <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6578/.jpg" alt="If f(x)=
Q68: If f(x)= <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6578/.jpg" alt="If f(x)=
Q69: Determine whether the graph of <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6578/.jpg"
Q70: Suppose the area of a square tablecloth
Q72: If f(x)= 4 <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6578/.jpg" alt="If f(x)=
Q73: Sketch the graph of <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6578/.jpg" alt="Sketch
Q74: Sketch a graph of f(x)= <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6578/.jpg"
Q75: Sketch a graph of f(x)= <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6578/.jpg"
Q76: Which graphs below represent functions of x?<br>(a)<img