1.If variable y is defined as: y = a*x*x + b*x+ c If we would like to obtain y in terms of c when a = 3, x = 5, and b= 10 and store it in z What command can be used? Answer z = subs(y,(a x b),{3 5 10}) z = subs(y,{a x b},{3 5 10}) z = subs(y,(a x b),(3 5 10)) z = subs(y,{a x b},(3 5 10))
2.Consider the following two simultaneous equations: x^2 + y^2 = 42x + 3*y + 2*y^2= 6 Which of the following is a possible solution for x and y? Answer x = -6.22 & y = 1.83 x = 6.48 & y = 0.18 x = -5.59 & y -1.38 x = 6.33 & y = -3.27