How to find the y intercept of a quadratic in vertex form

The video tutorial explains the concept of the Y intercept, which occurs when X equals zero. It demonstrates how to find the Y intercept by replacing X with zero in an equation and solving for Y. The tutorial also covers solving equations involving fractions and clarifies that students are not expected to handle complex fractions in their homework at this time.

What is the Y-intercept in a graph?

• The point where the graph crosses the X-axis

• The point where the graph crosses the Y-axis

• The lowest point on the graph

• The highest point on the graph

How do you find the Y-intercept of an equation?

• Set the equation equal to zero

• Set Y to zero and solve for X

• Set X to zero and solve for Y

• Set both X and Y to zero

What is the result of substituting X with zero in the equation y = 5/9 * 0 + 2^2 - 3?

• y = 1

• y = -3

• y = 4

• y = 5/9

What is the value of 2 squared in the equation discussed?

• 2

• 4

• 6

• 8

What should students remember about fractions in this lesson?

• They must solve all fractions

• They should ignore fractions

• They are not expected to handle complex fractions yet

• They should convert all fractions to decimals