alleryStart learning →What is the y-intercept of a line?
AThe point (a, 0) where the line crosses the x-axis
BThe point where two different lines cross each other
CThe point (0, b) where the line crosses the y-axis
DHow steep the slant of the line appears to be
Answer & Solution
Correct answer: C. The point (0, b) where the line crosses the y-axis
1. The definition states that the y-intercept is the point (0, b) where the line crosses the y-axis.
2. The point (a, 0) instead describes the x-intercept, where the line crosses the x-axis.
3. The intersection of two different lines and the steepness of a line's slant are separate ideas, not what the y-intercept means.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 4 "Graphs", section 4.3 Graph with Intercepts_
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