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USA-Pre-Algebra Functions (introductory)

Modelling linear relationships (rate of change and initial value)

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Questions
Question 1
178311
In a linear model \(y = mx + b\), what do the \(\textbf{rate of change}\) and \(\textbf{initial value}\) represent?
A.
Rate of change is \(b\); initial value is \(m\)
B.
Rate of change is \(m\) (slope); initial value is \(b\) (the value of \(y\) when \(x = 0\))
C.
Rate of change is the largest value in a table; initial value is the smallest
D.
Rate of change is the \(x\)-intercept; initial value is the \(y\)-intercept
Rate of change is \(m\) (slope); initial value is \(b\) (the value of \(y\) when \(x = 0\))

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