basically for
21a) when finding slope you wrote (14-50) when you should've had (41-50) = 9
your slope equation would've been = -9/-3 = 3
y = 3x + b
use (7,41)
41 = 21 + b
20 = b
y = 3x+20
x = 4
y = 12 + 20
y = 32 dollars
8.8m questions
11.4m answers