Step-by-step explanation:
the equation is
3x + 5y = 18
the blue dot is the interception of the line with the y-axis. that is the y value, when x = 0.
the equation for x = 0 is
3×0 + 5y = 18
5y = 18
y = 18/5 = 3 3/5 = 3.6
the red dot is the interception of the line with the x-axis. that is the x value, when y = 0.
the equation for y = 0 is
3x + 5×0 = 18
3x = 18
x = 18/3 = 6
so, you need to move the blue dot to 3.6 and the red dot to 6.
