It would be the second one if you follow PEMDAS
Answer:
y=5/4x-1
Step-by-step explanation:
-6-4/-4-4 = -10/-8 = 5/4 (slope)
y=5/4x+b
4=5/4(4)+b
b=-1
y=5/4x-1
Answer:
9
Step-by-step explanation:
Answer:
Lowest score needed=4.92
Step-by-step explanation:
Using the standard normal distribution table we find the value of standard normal deviate corresponding to area of 15%
For area of 15% we have Z= -1.04
Thus we have

Applying values we get

Thus lowest score needed = 4.92