human
Given a sketch of a linear graph solve f(x) = 0 This is a graph of
\(y=1-0.4 x\) ![A set of axes with y=1-0.4x drawn on.]() Use the graph to solve
\(1-0.4 x=0\) \( x=1 \)
gpt
Believes they solve mx + c = 0 by substituting in x = 0