A piano teacher tracks the number of audience members for a recital to plan the best size auditorium to reserve for future recitals. The model ŷ = 2.8x 7.6 explains the relationship between x, the number of students performing, and ŷ, the predicted number of audience members. Identify and interpret the y-intercept. The y-intercept is 2.8. When no students are performing, 2.8 people are predicted to be in the audience. The y-intercept is 2.8. For every additional student performing, the audience is predicted to grow by 2.8 people. The y-intercept is 7.6. When no students are performing, 7.6 people are predicted to be in the audience. The y-intercept is 7.6. For every additional student performing, the audience is predicted to grow by 7.6 people.