Hello everyone,

Could someone please help me on this problem?

A plane has equation z=5x-2y+7

a. Find the value of W making the vector Wi+j+.5k normal to the plane

b. Find a value of a so that the point (a+1, a, a-1) lies on the plane

My attempt:

z=5x-2y+6

Wi+1j+.5k

a. 1j--> -2y

-.5--> 7

5(x-01)-2(y-0)+5(z-0)+7=0

b.

5(x-a+1)-2(y-a)+0(a-1)+7=0

I now just need to solve for a, righ?

Is this anywhere close?

Thank you very much