Answer: slope: -1/4. Y-intercept: 9/8.
Step-by-step explanation:
Use the slope-intercept form y = mx + b to find the slope m and y-intercept b
Well the average would change from 85 to 85.4
They need 18 more teachers.
Set the problem up as a ratio.
3 x
---- = -------
70 14,700
70 x = 44,100
x = 630
The district already has 612 teachers. So, 630 - 612 = 18 more needed.
