PSAT Math Grid-Ins Question 66: Answer and Explanation
Question: 66
For what value of y does the graph of 
cross the y-axis?
Correct Answer: 24
Explanation:
24
Difficulty: Medium
Getting to the Answer: The place where the line crosses the y-axis is the y-intercept, or b when the equation is written in slope-intercept form (y = mx + b), so rewrite the equation in this form:
The y-intercept is 24.
Because the y-intercept of a graph is always of the form (0, y), you could also substitute 0 for x in the original equation and solve for y.
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