Answer: x = -4/13
Step-by-step explanation:
8x + 1 = 21x + 5
8x + 1 - 21x = 21x +5 - 21x
-13x + 1 = 5
-13x + 1 - 1 = 5 - 1
-13x/13 = 4/-13
x = -4/13
Answer:
-4/13
The function is increasing on the interval [-2,1]
