D.
Determine if the relations’ graph forms a line.
Step-by-step explanation:
A function is a relation if the input values lead to only one output value.The input values, normally x values make up the domain, where as the output values form the domain.A function is a relation where the input values are associated with a single output.The vertical test is used to determine if a curve is a function.The line graph should only hit a single point on the curve.
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Relations and Functions :brainly.com/question/3296514
Keywords; relation, a function, vertical line test, output, input, maps
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The correct answer is: Option 3: 
Step-by-step explanation:
Given
We have to find
This will be equal to:
So we have to find the composition of (fog)(x) first
Now,
The correct answer is: Option 3:
Keywords: Composition, Functions
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The value of x is 5
The length of line AB is 5 inches
The length of BC is 15 inches
6x - 28 = 4x + 20
2x - 28 = 20
2x = 48
x = 24
6(24) - 28 = 116
mRS = 116°
