Question

Which two functions have the same rate of change? Select all that apply. A. n = 0.6r + 1 B. y = 0.5x - 1 C. y = 4x - 7 D. t= 0.5n + 1

Answer 1

• B. y = 0.5x - 1

,

• D. t= 0.5n + 1​

Step-by-step explanation:

The slope-intercept form of the equation of a straight line is:

`\begin{gathered} y=mx+b \\ \text{where m=rate of change} \end{gathered}`

From the given equations, the two that have the same rate of change are:

`\begin{gathered} B.y=0.5x-1 \\ D.t=0.5n+1​ \end{gathered}`

Their rate of change is respectively 0.5.

The correct choices are B and D.