Answer:
y=4x and x+4y=12 are perpendicular because they have opposite reciprocal slopes
Step-by-step explanation:
y=4x slope is 4
x+4y=12 slope is -1/4
10 is the least common denominator
a) The answer will be 456976 because you multiply 26 and 4.
b) The answer will be 358800 bacause you multiply 26*25*24*23
The answer is 6x^2 - 8x + 2