The graph of f(x) = x+ was transformed to create the graph of g(x) = f(x) - 9. Which statement about the graphs is true?
A)
The graph of g is a reflection of the graph of facross the x-axis.
B)
The vertex of the graph of g is 9 units to the right of the vertex of the
graph of f.
C)
The graph of g is a reflection of the graph of facross the y-axis.
D)
The y-intercept of the graph of g is 9 units below the y-intercept of the
graph of f.

Step-by-step explanation:

A

£56

step-by-step explanation:

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation: