Which expressions are equivalent to 7^-2 * 7^6
1 answer:
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Let's factorise it :
Using Distributive property we get :
⠀
Therefore,
A
evaluate f(5) and f(2)
f(5) = 5m + b and f(2) = 2m + b, hence
f(5) - f(2) = 5m + b - 2m - b = 3m
the expression simplifies to
= 2 ( cross- multiply )
3m = 6 ( divide both sides by 3 )
m = 2 → A