- #1
salistoun
- 14
- 0
Hi all,
I got this question from a past exam paper does the point (8 , 4 , -5) lie on the plane 7x - 3y + 4z = 8?
Do you work it out as follows because can't find this example in my Linear Algeria book?
7(8) - 3(4) + 4(-5) = 8
56 - 12 - 20 = 8
24 is not equal to 8
Therefore the following point does not lie on the plane.
Thanks
Stephen
I got this question from a past exam paper does the point (8 , 4 , -5) lie on the plane 7x - 3y + 4z = 8?
Do you work it out as follows because can't find this example in my Linear Algeria book?
7(8) - 3(4) + 4(-5) = 8
56 - 12 - 20 = 8
24 is not equal to 8
Therefore the following point does not lie on the plane.
Thanks
Stephen