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Write down the equations of the asymptotes of g. Determine the value(s) of x for which: g(x) = h(x), -4 < -2x-2/3 <= 0, g is increasing. Determine the equation of the line of symmetry of g with a negative x-intercept.
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5.2.1 Write down the equations of the asymptotes of g.
The given function is .
For a hyperbola of the form :
- The vertical asymptote is .
- The horizontal asymptote is .
Identify and from the function .
Here, and .
Write down the equations of the asymptotes.
The vertical asymptote is .
The horizontal asymptote is .5.2.2 Determine the value(s) of x for which:
a)
Given and .
Setting them equal:Multiplying by (assuming ):
Rearranging into a standard quadratic form :
To find the solutions, we use the quadratic formula .
Here, , , .Since the discriminant () is negative, there are no real solutions for .
Note: The provided graph clearly shows two intersection points between and . This indicates a likely typo in the definition of . If was intended to be (which matches the graph's appearance), the solutions would be:
Factoring the quadratic equation:
This gives two solutions:
Given the contradiction, I will provide the answer based on the algebraic definition as written, and then note the discrepancy.
b)
This is a compound inequality. We solve each part separately.Solve the left inequality
.
Multiply both sides by 3:Add 2 to both sides:
Divide by -2 and reverse the inequality sign:
Solve the right inequality
.
Multiply both sides by 3:Add 2 to both sides:
Divide by -2 and reverse the inequality sign:
Combine the solutions from Step 1 and Step 2.
We need AND .
c) g is increasing.
The given function is .
To determine where is increasing, we can examine its derivative or the behavior of the hyperbola.
The derivative of is .
Since is always positive for , will always be negative.
This means is always decreasing for all .Note: If we assume (as suggested by the graph), then . In this case, would always be positive, meaning is increasing for all . Based on the written function, is never increasing.
5.2.3 Determine the equation of the line of symmetry of g with a negative x-intercept.
The lines of symmetry for a hyperbola of the form pass through the intersection of its asymptotes and have gradients of .
From 5.2.1, the asymptotes of are and . Their intersection is .Write the equations of the lines of symmetry using the point-slope form .
For :
For :
Determine which line has a negative x-intercept.
For : Set . (Positive x-intercept)
For : Set . (Negative x-intercept)The line of symmetry with a negative x-intercept is .
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