question

[rachael724]

I am working on this problem:

Determine whether (2, - 4) and (4, - 5) are solutions to the equation 19x + 2y2 = 70.

I am a bit stuck but I think the answer is Only (4, -5) is a solution am I right?

 

[happy]

Determine whether (2, - 4) and (4, - 5) are solutions to the equation 19x + 2y2 = 70.

Let's plug them in and see.

(2,-4): 38+32=70 yes
(4,-5): 76+50=126 nope

 

[rachael724]

Thanks happy!