Help please Brainleaest!
1 answer:
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Answer:
Step-by-step explanation:
I'm assuming that strange looking thing is a 9, so begin by multiplying both sides by that denominator to get:
then subtract 3 from both sides to get
and then square both sides to get
and get everything on one side to solve for x by factoring:
and factor that however it is you have learned to factor second-degree polynomials to get that
x = 16 and x = 9. We have to check for extraneous solutions because anytime you manipulate an equation, as we did by squaring both sides, you run the risk of these solutions that actually don't work when you plug them back into the original equation. Let's try 16 first:
If 16 is a solution, then this statement will be mathematically true.
and
so 16 works. Let's try 9:
We know that one doesn't work, because 9-9 = 0 and 0 over anything = 0, not 1.
x = 16 is the only solution.
The slope is .
(Please comment if you want explanation)
Ok, My answer is marked wrong and I don't know why. Ok, kindakait asked for the slope of the line in the graph.
To find the slope of the line is or so they call
.
We can clearly see that to be at (-2,1) from (-4,5). You have to rise by <u>-</u><u>4</u> units and run by <u>2</u> units. Therefor:
.
If you are not satisfied yet. Let's try another points. (0,-3) and (1,-5) and this is obvious by just eyeballing it.
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