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Emily designed a robot that could climb down steps. She drew a graph to show the results from a test of her new robot. The graph shows the number of steps remaining over time. Which equation represents Emily’s situation, where x is the number of seconds and y is the number of steps? 

y=−110x+15 y=110x+15 y=−10x+150 y = 10x + 150

Emily designed a robot that could climb down steps She drew a graph to show the results from a test of her new robot The graph shows the number of steps remaini class=

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Answer: The correct option is 1.

Explanation:

From the given graph it is noticed that the line passing through the point (0,15) and (150,0).

If a line passing through two points then the equation of line is,

[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)[/tex]

[tex]y-15=\frac{0-15}{150-0}(x-0)[/tex]

[tex]y-15=-\frac{1}{10}(x)[/tex]

[tex]y=-\frac{1}{10}(x)+15[/tex]

Therefore the equation which represents Emily’s situation is represented by option 1.

Answer:

A

Step-by-step explanation: