Correct. The line shown has slope 3 (since it contains the points (0, 0) and (1, 3)) and its y-intercept is (0, 0), so the equation of the line is $\displaystyle{y}={3}{x}+{0}\usepackage{cmbright}\Huge\$ , which is the same as $\displaystyle{y}={3}{x}\usepackage{cmbright}\Huge\$ .