Answer:
hole at x=-3
Step-by-step explanation:
The hole is the discontinuity that exists after the fraction reduces. (Still doesn't exist for original of course)
The discontinuities for this expression is when the bottom is 0. x^2-9=0 when x=3 or x=-3 since squaring either and then subtracting 9 would lead to 0.
So anyways we have (x+3)/(x^2-9)
= (x+3)/((x-3)(x+3))
Now this equals 1/(x-3) with a hole at x=-3 since the x+3 factor was "cancelled" from the denominator.
Answer:
3. 100 + 100
5. 1000 + 310
7. 400 + 16
2. 300 + 24
ight that all I can do for you right now
Step-by-step explanation:
Answer:
The graph of the inequality x < -12 would look like the graph I attached
Answer:
A model just means which function best fits the data. If you plug your values into a list on your graphing calculator and turn on your diagnostics, you can determine which function closely fits the data.
Turn on your diagnostics. This allows you to determine what's called the "correlation coefficient". The closer this value is to 1 or -1, the better the fit. For linear, the correlation coefficient R2=.96. For quadratic, the R2=.99. For exponential, the R2=.91. This means quadratic is the best fit, very good actually since .99 is very close to 1. Hope this helps.
Step-by-step explanation:
Answer:
(2,-4) And (3,-2)
Step-by-step explanation:
Here we have to solve one linear equation and a quadratic equation.
First we find the value of y in terms of x from linear equation and then substitute this value in our quadratic equation to solve it for x , Let us see how :
we have y-2x=8
y=2x-8
Now we substitute this in 
Hence we have
Thus we have
either (x-2)= 0 or (x-3)=0
or x=2 or x=3
Now let us find the value of y by substituting them in y=2x-8 one by one.
y=2(2)-8= 4-8=-4
y+2((3)-8=6-8=-2
Hence our coordinates are
(2,-4) and (3,-2)
