Question

Eliminate the parameter. x = 3t, y = t + 7

a. y=x/3 + 7
b. y= 3x+7
c. y=3x-7
d. y=x/3 - 7

Answer 1

b. y=x/3+7

we divide x=3t by 3 to just get t, which gives us x/3=t, so if this is the value of t, we can put it in the main equation giving us y = x/3+7 so b.