When does it fail?

For which value of $k$ does the system $x + k y = 1$ , $2 x + 4 y = 3$ have no solution?

~6 minAnswer checked instantlyLinear systems

Stuck? A gentle nudge

Something off?

Workspace

Your answer

Loading the math keyboard…

Type naturally — sqrt, pi, / and ^ become notation. Any equivalent form is accepted. Press Enter to check.