Understanding Y-Intercepts

What is the y-intercept of a line on a graph?

• The lowest point on the line

• The highest point on the line

• The point where the line crosses the x-axis

• The point where the line crosses the y-axis

If a line crosses the y-axis at the origin, what is the y-intercept?

• It cannot be determined

• -1

• 0

• 1

How do you find the y-intercept from a table?

• Look for the row where x equals 0

• Look for the row where y equals 0

• Look for the row where y equals 1

• Look for the row where x equals 1

In a table, if x is not given as 0, what should you do to find the y-intercept?

• Add values to x until it reaches 0

• Subtract values from x until it reaches 0

• Multiply x values by 2

• Divide x values by 2

When working backwards in a table to find the y-intercept, what operation is performed on the y values?

• Multiply by the same number each time

• Subtract the same number each time

• Divide by the same number each time

• Add the same number each time