A market supply curve has three prices 2 $2.00. $2.50 and $3.00 7 with a quantity supplied of 5 tonnes at the price of $2.00. 9 tonnes at $2.50, and 13 tonnes at $3.00 a. Is this supply curve a straight line? 0 This curve is not a straight line because it does not have a constant slope. O This curve is a straight line because it has a constant slope of 0.25. O This curve is a straight line because it has a constant slope of 0.125. O This curve is a straight line because it has a constant slope of 0.5. b. What is the price elasticity of supply, es, between prices $2.00 and $2.50 and oetween prices $2.50 and $3.00? Do not round your interim calculations tietore obtaining the final solution {I.e. do not clear your calculator). in each case. express the number to two decimal places and do not include a positive or negative sign (Le. 1.6?. not 4.? or +1.66%. The price elasticity of supply is between prices $2.00 and $2.50, and is between prices $2.50 and $3.00. c. Based on your answers to parts [a] and [b], must a supply curve with a constan slope have a constant numerical elasticity? O A supply curve with a constant slope must have a constant supply elasticity. O A supply curve whose slope varies has a supply elasticity which varies by exactlythe same proportions. O A supply curve whose slope varies must have a constant supply elasticity. O A supply curve with a constant slope does not need to have a constant elasticity