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SAT Mathematics QUESTION #5389
Question 1
A line in the $xy$-plane passes through the origin $(0, 0)$ and has a slope of $\frac{1}{7}$. Which of the following equations represents this line?
  • $y = x + 7$
  • $y = 7x$
  • $y = \frac{1}{7}x$✔️
  • $y = x + \frac{1}{7}$
Correct Answer Explanation
The slope-intercept form is $y = mx + b$. Here, $m = \frac{1}{7}$ and $b = 0$ (since it passes through the origin), giving $y = \frac{1}{7}x$.