Write the equation of a line from its intercepts
The y-intercept is where the line crosses the y-axis. Find the slope from the two intercepts.
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A line crosses the x-axis at (−4, 0) and the y-axis at (0, 24). Write its equation in the form y = mx + b.
Answer: y = 6x + 24
A line crosses the x-axis at (1, 0) and the y-axis at (0, 6). Write its equation in the form y = mx + b.
Answer: y = -6x + 6
A line crosses the x-axis at (5, 0) and the y-axis at (0, −25). Write its equation in the form y = mx + b.
Answer: y = 5x - 25
Tip: The y-intercept is where the line crosses the y-axis. Find the slope from the two intercepts.
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