Question

Please help?

Answer 1

The value that makes the slopes the same.

Answer 2

The slope of the first one is -4/
The slope of the second one is 10/k
If the slopes are equal the lines and parallel and there is no solution.

Answer 3

Slope of first one is -4/5

Answer 4

@Mertsj i don't see the correct answer listed, do you?

Answer 5

I do not. Did I make a mistake?

Answer 6

multiply 4 by \(-2.5\) to get \(-10\) if you multiply \(5\) by \(-2.5\) you get \(-12.5\)

Answer 7

no i am not saying you made a mistake
all the answers given are wrong, each one of those would have solutions

Answer 8

how about \[\left|\begin{matrix}4&5\\-10&k\end{matrix}\right|=0\]

Answer 9

the system matrix is singular?

Answer 10

same thing! lol

Answer 11

yeah it is the same

Answer 12

\[k=-{25\over2}\]

Answer 13

\[4k+50=0\iff k=-12.5\]

Answer 14

@sarah_hendrix7 the right answer is not given, all of the given answers would give a system of with solutions
sorry

Answer 15

No problem, I came up against the same roadblock, so I asked here...