Easy! write a linear function with the given values: (include the once equation is made pls solve also) 1: f(2) = -2 f(1) = 1

2: f(-4) = 2 f(6) = -3

3: f(-3) = 1 f(13) = 5

Step-by-step explanation:

Seventy students hear the nurse speak, 37 heard the firefighter, and 63 heard the webmaster. Some students heard more than one speaker. The results are shown in the table:

Number of Students. . .Speaker

. . . . .15. . . . . . . . . .All three

. . . . .20. . . . . . . . . .nurse and firefighter

. . . . .30. . . . . . . . . .webmaster and nurse

. . . . .12. . . . . . . . . .firefighter only