Which statements are true about the polynomial 4x3 – 6x2 + 8x – 12? Check all that apply
2 answers:
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P = A/D, Where P = Monthly payments, A = Total amount owed = 15,000-1,500 = $13,500,
r = 5% = 0.05, nt = 12*3 = 36
Therefore,
D =
= 33.37
Then,
P = 13,500/44.37 = $404.61
The correct answer is c.
r = 5% = 0.05, nt = 12*3 = 36
Therefore,
D =
Then,
P = 13,500/44.37 = $404.61
The correct answer is c.
The graph of the function 
is parabola with branches going down in the negative direction of y-axis.
The vertex of parabola has coordinates:
Then you can conclude that all x are possible, that means that the dimain is
and the maximum value of y is at the vertex, then the range is ![(-\infty,6]](https://tex.z-dn.net/?f=%28-%5Cinfty%2C6%5D)
.The function is increasing for x<-2 and decreasing for x>-2 (since vertex is the maximum point).
When x=0, y=2.
Hence,
<span>The domain is {x|x ≤ –2} - false.
</span>
<span>The range is {y|y ≤ 6} - true.
</span>
<span>The function is increasing over the interval (–∞ , –2) - true.
</span>
<span>The function is decreasing over the interval (−4, ∞) - false.
</span>
<span>The function has a positive y-intercept - true.</span>
The vertex of parabola has coordinates:
Then you can conclude that all x are possible, that means that the dimain is
When x=0, y=2.
Hence,
<span>The domain is {x|x ≤ –2} - false.
</span>
<span>The range is {y|y ≤ 6} - true.
</span>
<span>The function is increasing over the interval (–∞ , –2) - true.
</span>
<span>The function is decreasing over the interval (−4, ∞) - false.
</span>
<span>The function has a positive y-intercept - true.</span>