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.

Complete the equation that represents Emily’s situation.

y = x +

First quadrant grid, x-axis numbered 0 to 150 and labeled Minutes, y-axis numbered 0 to 15 and labeled Tablespoons. A line with negative slope intersects the y-axis at 15 and the x-axis at 150.

Question

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.
 
Complete the equation that represents Emily’s situation.
 
y =   x +  
 
   First quadrant grid, x-axis numbered 0 to 150 and labeled Minutes, y-axis numbered 0 to 15 and labeled Tablespoons. A line with negative slope intersects the y-axis at 15 and the x-axis at 150.