There is a Minecraft sale for 30% off all games. Which expression represents the total cost of Minecraft Dungeons if it cost x dollars

Step-by-step explanation:

Discount in value is:

Discounted cost is:

is only a line? i think so

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c