Problema Solution
A line C has equation y = x/2+7. Find the x-coordinate where the line C crosses the x-axis.
Answer provided by our tutors
the line C crosses the x-axis when y = 0 thus
x/2 + 7 = 0
x = (-7)*2
x = - 14
click here to see the graph of the line C
the x-coordinate where the line C crosses the x-axis is -14.