5. Since 3 students are absent in which represents 10% of the classroom, multiply the number 3 by 10 to get 30 students which represents the full roster.
6. 20% of his original weight is 49, multiply that number by 5 to get the original weight which is 245 pounds.
The function has a slope : m = - 2 and contains the point ( 8, 12 ). y = m x + b 12 = ( - 2 ) * 8 + b 12 = - 16 + b b = 12 + 16 b = 28 The slope-intercept form of the function is: y = - 2 x + 28