Kara is 4 more than twice as old as Julia. The sum of their ages is 13. How old is Julia?
1 answer:
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We have
f(x)=<span>−x</span>²<span>+ 5x + 6
g(x)=</span><span>3x − 2
we know that
f(x)=g(x)
the solution is the intersection both graphs
using a graph tool
see the attached figure
the solution are the points
(4,10)
and
(-2,-8)
</span>
f(x)=<span>−x</span>²<span>+ 5x + 6
g(x)=</span><span>3x − 2
we know that
f(x)=g(x)
the solution is the intersection both graphs
using a graph tool
see the attached figure
the solution are the points
(4,10)
and
(-2,-8)
</span>