Answer:
y = 40
Step-by-step explanation:
y-10=30
y=30+10
y=40
Y/3=x or y divided by 3 is equals x. They are the same thing just but the equation in word form.
Answer:
y = -x
Step-by-step explanation:
it because the reflection change the value of x become -y
so the reflection we can use is the line y = -x
It has to do with the number of dimensions you have in the figure. For example, in a square you have 2 dimensions, length and width. Since you have only two you use units^2. In a cube, you have 3 dimensions, length, width and height, which is where you get the units^3.