1. Convert the vector equation of the plane (x, y,z]=[1,2,1]+t[2,1,-1]+s(1,0,1] into
(i)Parametric form
(ii)Scalar form Ax+By+Cz+D =0

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x

6x = 48

i hope this . 6 cards each and a total of $48. dvide each side by 6 and you will have your answer.