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10 votes
10 votes
Help Please And Thank you

User Jefferson Lima
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1 Answer

22 votes
22 votes

The rate of change, that is the slope, is calculated for function A as follows;


\begin{gathered} m=(y2-y1)/(x2-x1) \\ m=(0-5)/(2.5-1.5) \\ m=(-5)/(1) \\ m=-5 \end{gathered}

The slope for function B, which is given in slope intercept form as;


\begin{gathered} y=-4.5x+15 \\ \text{The slope is the coefficient of x and that is -4.5} \end{gathered}

The correct answer is option D

Function B has a greater rate of change, because -4.5 is of higher value than -5

User Einnocent
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