Which equation is in slope-intercept form?

Which equation is in slope-intercept form?

• A. Ax + By = C
• B. y = x^2
• C. x/y = m
• D. y = mx + b

Answer: (D)

Slope-intercept form is written as y = mx + b, where m is the slope (how steep the line is) and b is the y-intercept (where the line crosses the y-axis). This format shows y as a direct function of x, with the intercept and slope visible right in the equation. Among the given options, the one that matches this pattern is y = mx + b, so that is the equation in slope-intercept form. The other forms don’t fit: Ax + By = C is a standard form that isn’t written as y in terms of x; y = x^2 is a quadratic, not a straight line; and x/y = m isn’t a typical way to express a line in slope-intercept style.

Slope-intercept form is written as y = mx + b, where m is the slope (how steep the line is) and b is the y-intercept (where the line crosses the y-axis). This format shows y as a direct function of x, with the intercept and slope visible right in the equation. Among the given options, the one that matches this pattern is y = mx + b, so that is the equation in slope-intercept form. The other forms don’t fit: Ax + By = C is a standard form that isn’t written as y in terms of x; y = x^2 is a quadratic, not a straight line; and x/y = m isn’t a typical way to express a line in slope-intercept style.