Which of the following equations is in standard form for a linear equation in two variables?

What is the standard form of the equation for a line that passes through the point (2, -3) with a slope of 4?

Which equation represents the standard form of the line that passes through the points (1, 2) and (3, 8)?

What is the standard form of the linear equation that has a slope of -3 and a y-intercept of 4?