Answer:
f(- 2) = - 7
Step-by-step explanation:
substitute x = - 2 into f(x)
f(- 2) =
× - 2 - 4 = - 3 - 4 = - 7
Answer:
y=1x+4
Step-by-step explanation:
First, find the slope using the formula of y2-y1/x2-x1
Lastly, use any y point from either points to use as a y int.
Hope this helped!
Answer:
C. 52 is the correct answer
Step-by-step explanation:
Answer: 2.5%
Step-by-step explanation:
Mean score = 65
Standard deviation = 5
Score (x) = >75
Z-score = [(score - mean) ÷ standard deviation]
Z - score = [(75 - 65) ÷ 5]
Z - score = 10 ÷ 5 = 2
P(score higher than 75) = 100 - 95 = 5/2 = 2.5%