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s344n2d4d5 [400]
3 years ago
9

Suppose the graph of the parent function y=cot(x) is vertically compressed to produce the graph of the function y=a cot(x) but t

here are no reflections. Which describes the value of a?
a. a<-1
b. -1 c. 0 d. a>1
Mathematics
2 answers:
podryga [215]3 years ago
4 0
We are given:

parent function y = cot (x) which is vertically compressed to produce y = a cot(x) with no reflections. 

The graph of the cotangent function is opposite of tangent function. You can observe that if the function will be vertically compressed it will shift towards zero but not less than zero, so the value of a is best described as d a>1. 
butalik [34]3 years ago
4 0

no, its C.......................................

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The graph of the line with the equation y = 1/2 * x + 4 crosses the x-axis at which of the following
svlad2 [7]

Answer:

Step-by-step explanation:

so we are looking for the x intercept (where the line crosses the x axis).

to do this, we sub in 0 for y and solve for x.

y = 1/2x + 4....sub in 0 for y

0 = 1/2x + 4

-1/2x = 4

x = 4 * -2

x = -8 <=== so it crosses the x axis at (-8,0)

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2 years ago
7. y-2 = (x+3)<br> 4<br> 2<br> X<br> - TO<br> 12<br> 4
drek231 [11]

Answer:

y = -24 + -2x + 2x2

Step-by-step explanation:

Simplifying:

y = 2(x + 3)(x + -4)

reorder the terms:

y = 2(3 + x)(x + -4)

multiply (3 + x) * (-4 + x)

y = 2(3(-4 + x) + x(-4 + x))

y = 2((-4 * 3 + x * 3) + x(-4 + x))

y = 2((-12 + 3x) + x(-4 + x))

y = 2(-12 + 3x + (-4 * x + x * x))

y = 2(-12 + 3x + (-4x + x2))

Combine like terms  3x + -4x = -1x

y = 2(-12 + -1x + x2)

y = (-12 * 2 + -1x * 2 + x2 * 2)

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Solving:

y = -24 + -2x + 2x2

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Simplifying:

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