Answer:
![m =5](https://tex.z-dn.net/?f=m%20%3D5)
Step-by-step explanation:
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The "<em>constant rate of change</em>" is also known as the slope (in straight line equations).
The equation is in <em>slope-intercept form</em>.
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<em>Slope-Intercept Form is: </em>
<em></em>![y = mx + b\\ \rule{150}{0.5}\\ \text{m - slope}\\ \text{b - Y-Intercept}](https://tex.z-dn.net/?f=y%20%3D%20mx%20%2B%20b%5C%5C%0A%5Crule%7B150%7D%7B0.5%7D%5C%5C%0A%5Ctext%7Bm%20-%20slope%7D%5C%5C%0A%5Ctext%7Bb%20-%20Y-Intercept%7D)
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<em>Since '5' takes up 'm's spot, it is the slope, or the constant rate of change. </em>
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<em>Hope this helps.</em>