Answer:
the answer is 2.5 or 2 1/2
hope this helps :)
Honi maded the mistake in step 1
1) it must be fulfilled that the denominator is different from zero, then for this expression
x^2 -9 ⇒ x^2-3^2 = (x-3)(x+3)⇒ (x-3)(x+3) = 0 ⇒ x = 3 o x = -3 , the dominium is all numbers reals except 3 and -3
<em>Find the gradient of the line joining (-1,9) and (3,5)</em>
<em />
Use the slope formula:-
Replace the letters with the numbers:-
On simplification,
On further simplification,
<h3>Good luck with your studies.</h3>
