-30, 10*4=40 so you do 9-40+1 which is equal to -30
Y+y-3 is the expression need to find the triangle's area
Answer:
D
Step-by-step explanation:
If you look at the centerand radius of a circle (those are the two most important things when defining a circle), you will see, they shrank by a factor of two, so since it affected both x and y, it had to be from the origin.