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4 years ago

8

Is 3y=12 a linear function and if so, how would you graph it?

2 answers:

Fynjy0 [20]4 years ago

6 0

find y which is 4 (12/3) then in would be a straight line horizontally because y is going to always equal 4. Don't know if this helps but here you go. Have a good day.

alexdok [17]4 years ago

4 0

3y = 12 <em>divide both sides by 3</em>

y = 4

It's a linear function with a slope 0.

It's a horizontal line (look at the picture).

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Select the correct answer.

Nookie1986 [14]

Answer:

Correct option: C.

Step-by-step explanation:

(Assuming the correct function is R(x) = 2x^2 + 3x + 5)

To find the input value that gives the value of R(x) = 19, we just need to use this output value (R(x) = 19) in the equation and then find the value of x:

$R(x) = 2x^2 + 3x + 5$

$19 = 2x^2 + 3x + 5$

$2x^2 + 3x -14 = 0$

Solving this quadratic function using the Bhaskara's formula (a = 2, b = 3 and c = -14), we have:

$\Delta = b^2 - 4ac = 9 + 112 = 121$

$x_1 = (-b + \sqrt{\Delta})/2a = (-3 + 11)/4 = 2$

$x_2 = (-b - \sqrt{\Delta})/2a = (-3 - 11)/4 = -3.5$

So looking at the options, the input to the function is x = 2

Correct option: C.

3 0

3 years ago

Is this a function? please explain if possible...

zlopas [31]

It is a function. Every x value is different.

3 0

3 years ago

Black_prince [1.1K]

Answer:

Step-by-step explanation:

substitute and solve:

100 = bh

100 = b(2b)

100 = 2b²

50 = b²

b = √50

b = √(25 * 2)

b = 5√2

solve for h:

h = 2b

h = 2(5√2)

h = 10√2

if you are told to round to 1 DP :

b ≈ 7.1 m

h ≈ 14.1 m

3 0

3 years ago

Read 2 more answers

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Masteriza [31]

Answer:217.5 miles

Step-by-step explanation:

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3 years ago

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3 years ago