5 quick questions? I'm in a rush. Will fan and give medal. Attached below!
1. What is the equation of the yz-trace for the plane 4x - 3y + z = 12? x = 3 4x - 3y = 12 -4y + 12z = 12 -3y + z = 12 2. How many trace lines can be drawn for the plane 2x + 4z = 5? 0 1 2 3 3. What is the equation of the xz-trace for the plane 7x - 2y + 3z = 19? 7x + 3z = 19 7x - 3z = 19 -2y + 3z = 19 2y + 3z = 19 4. What is the equation of the xy-trace for the plane -5x - 2y - 3z = 10? -3z = 10 -5x - 2y = 10 2y - 3z = 10 -2y - 3z = 10 5. The equation of the yz-trace is y + 2z = 4 for which plane? 3x - 3y + 6z = 12 -3x - y + 6z = 12 -6x - 3y + z = 12 3x - 3y + z = 12
@misty1212
#2 is 1.
as in the answer 1 or as in the first answer
for question 2.
ok
do you know how the other ones work @Bee_see
#1 is D
#3 is A
do you know the last 2
#4 B
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for 5, replace x with 0 in each equation in the choices and see if you get y+2z=4
are they only 4 choices for #5
none fit
yes theres only 4 @Bee_see
ok. let me redo the problem..maybe I'm missing something...
it could be A, but that 12 would have to be negative.
can you check #5? maybe you mean -y.
in the original problem
then #5 would be A
it is -y im sorry @Bee_see
ok
so 3x - 3y + 6z = 12 is the answer.
thank you!! @Bee_see
you are welcome
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