Answer:
<em>2a</em>
Step-by-step explanation:
Look at the numbers first: 12, 28, 42
12 = 2 * 2 * 3
28 = 2 * 2 * 7
42 = 2 * 3 * 7
The only factor all numbers have in common is 2.
GCF of numbers = 2
Now look at the variables: a^2b^6, a^4, ab^3
a^2b^6 = aabbbbbb
a^4 = aaaa
ab^3 = abbb
The only variable all expressions have in common is a.
GCF of variables = a
GCF of the three monomials is: 2a
To find f(2), look and see where the line crosses the Y axis, when The line is on X 2.
The line is on Y = -2, so the answer would be -2.
y= -1/4 x + 4
y= 0.2(x+1)^2+5 (Bottom left answer)
Hope this helps :)
