Answer:
y=4x-22
Step-by-step explanation:
y-y1=m(x-x1)
y-(-10)=4(x-3)
y+10=4x-12
y=4x-12-10
a. (x-3)(x+1)
b.
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144.
The reason is because 1 ft = 12 in, (1 ft)2 = (12 in)2 = 144 in2.