Final answer:
After simplifying the function y(x) = x - 5x + 7 to y(x) = -4x + 7 and substituting x with 2, the resulting value is -1. This value is not reflected in the provided options. None of the given options are correct.
Step-by-step explanation:
The question provided asks for the value of y(x) when x is substituted with 2.
First, we need to review the given function y(x) = x - 5x + 7.
By simplifying the equation, we can find the value:
Step 1: Simplify the function by combining like terms, which is x and -5x.
Step 2: Once simplified, the function becomes y(x) = -4x + 7.
Step 3: Substitute x = 2 into the simplified function: y(2) = -4(2) + 7.
Step 4: Calculate the value: y(2) = -8 + 7 = -1.
So, by substituting x=2 into y(x), the value obtained is -1.
However, this value is not present in the options provided in the question.
So, none of the given options are correct.
A function is a relation or correspondence between two sets, typically called the domain and the codomain, such that each element in the domain is uniquely associated with exactly one element in the codomain.
Question: If y(x)= x - 5x+7, find each value. Substitute x=2 into y(x):
4. h(2)
a) -3
b) 42
c) 53
d) 67