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3 years ago

Which of the equations below represents a line parallel to the y-axis?

Mathematics

1 answer:

Nadya [2.5K]3 years ago

3 0

Answer:

A. x=4

Step-by-step explanation:

The y-axis is a vertical line at x=0, so for a line to be parallel to x=0, x must equal another constant. Option A is the only option that has a constant.

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Write the equation of the function<br> please help

Andrej [43]

Examine the graph.

The graph looks like one of square-root....let's see.

If we make a translation of (-3,-2), i.e. the beginning of the graph, to the origin, we will see that we have the following points on the graph,

(0,0), (1,1), (4,2), (5,2.2), (8,2.8)

all of which correspond to the sqrt(x) function.

Thus if we take the parent graph as sqrt(x), and translate to the current position by a translation of (-3,-2), we get the current graph.

To do the translation, we recall that a translation of a parent function f(x) by (h,k) can be effected by

g(x) ->f(x-h)+k

Setting h=-3, k=-2, and f(x)=sqrt(x), we get

current graph g(x)=f(x-(-3)+(-2)=f(x+3)-2 = sqrt(x+3)-2

7 0

3 years ago

If (a+b)(a-b)=21,a+b=7 and a-b=3 what Is the value of a

topjm [15]

9514 1404 393

Answer:

Step-by-step explanation:

Add the latter two equations and you get ...

(a +b) +(a -b) = (7) +(3)

2a = 10 . . . . . . . . . . . . . . . simplify

a = 5 . . . . . . . divide by 2

8 0

3 years ago

In a statistics course, a linear regression equation was computed to predict the final-exam score from the score on the first te

Elanso [62]

Answer:

Predicted final score of Josh $= 62.5$

Step-by-step explanation:

The linear regression relationship has been established between the final-exam score and the score on the first test

The relation ship is represented by a linear equation -

$y = 10 + 0.75 x\\$

Where

$x=$ score on the first test

$Y=$ final-exam score

Substituting the value of $x$ in above equation we will get -

$Y = 10 + 0.75 * 70\\Y = 10 + 52.5\\Y = 62.5$

Predicted final score of Josh $= 62.5$

6 0

3 years ago

A rectangular swimming pool measures 14 feet by 30 feet. The pool is

Zolol [24]

Answer:

The total cost of resurface the path is $\$600$

Step-by-step explanation:

step 1

Find the area of the path

The area of the path is equal to the area of the path plus the swimming pool minus the area of the swimming pool

$A=(14+3+3)(30+3+3)-(14)(30)$

$A=(20)(36)-(14)(30)$

$A=300\ ft^{2}$

step 2

Find the cost of resurface the path

Multiply the area of the path by $2 per square foot

$300*2=\$600$

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3 years ago

Will mark brainliest

victus00 [196]

Answer:

Step-by-step explanation:

8 times 1/4 equals 2

if this is wrong i am so sorry

3 0

3 years ago

Read 2 more answers