Question

PLEASE HELP! QUICK QUESTION!

2x+ay=4
ax+8y=8

What value(s) of "a" will give no solution and infinite solution?

Answer 1

is the question correct?

Answer 2

are those supposed to be two equations describing the same variable?! if so, no value of a would satisfy both equations

Answer 3

my bad, the equation is 2x+ay=4 and ax+8y=8

Answer 4

first, combine equations to make it in the form ax^2 + bx + c = 0 (quadratic form). where 'x' is 'a' in this case

Answer 5

then, you can set up conditions to check when the solution will not exist or be infinite

Answer 6

another approach
to have infinite solutions equation 1 would be equal to equation 2
to make them equal multiply the first equation by 4
8 = 8 so 4x + 2ay = 8 and ax + 8y = 8
therefore when a = 4

Answer 7

what about no solutions?

Answer 8

what do you think?

Answer 9

i'd say when a -0

Answer 10

a=0

Answer 11

I did not post because not sure. The no solution situation is when the solution for equation one when substituted in equation 2 will not make the equation true.