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Determine the rate of change for each question.
26. 20x + 85y = 120​


Sagot :

Answer:

-4/17

Step-by-step explanation:

The slope of a line refers to the rate of change. First, put the equation into y-intercept form to clearly identify the slope.

[tex]20x+85y=120\\\\20x+85y-20x=120-20x\\\\85y=-20x+120\\\\\frac{85y}{85}=\frac{-20x+120}{85}\\\\y=-\frac{4}{17}x+\frac{24}{17}[/tex]

The coefficient next to the x is -4/17. Therefore, the rate of change (slope) of the line is -4/17.