Answer:
9
Step-by-step explanation:
9x8 is 72
9x9 is 81
9x8
3x3x4x4
3x3x2x2x2x2
9x9
3x3x3x3
Answer:
f(0) = 1
Step-by-step explanation:
f(x) indicates the "output" value present at the "input" (Output referring to the y value and input referring to the x value). So f(0) would mean the "y" value present at x = 0; however, there are two circles at x = 0. One of the dots is open(hollow) meaning that the "x" and "y" values present there are excluded. This leaves the closed(filled) dot which means that value is included and is the answer.