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One business charges $12 per t-shirt custom made.

Another business charges $11 per t-shirt plus a $20 set up fee for custom made.

If you were to graph both of these scenarios on the coordinate plane, the first graph would be proportional and the second non proportional.

How would you transform the first graph to make it become a non proportional graph with the same y-intercept as the second graph?

(1 point)
Responses

Right 1
Right 1

Up 1
Up 1

Left 20
Left 20

Right 20
Right 20

Left 1
Left 1

Up 20

1 answer

To transform the first graph, which is proportional and represented by the equation \( y = 12x \), into a non-proportional graph with the same y-intercept as the second graph (which has a setup fee and is represented by \( y = 11x + 20 \)), you need to add a fixed amount to the entire function.

The second graph has a y-intercept of 20, while the first graph has a y-intercept of 0. To achieve the same y-intercept, you would need to shift the first graph up by 20 units.

Therefore, the correct transformation is:

Up 20.