Respuesta :

Answer:

[tex]{ \tt{gradient = \frac{0 - ( - 3)}{ - 3 - 0} }} \\ = - 1 \\ y = mx + c \\ 0 = ( - 1 \times - 3) + c \\ c = - 3 \\ { \boxed{ \bf{y = - x - 3}}}[/tex]

hope this helps! feel free to clarify
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