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3 years ago

What is the inverse of the function f(x) = x + 3

Mathematics

2 answers:

xenn [34]3 years ago

8 0

Answer:

the answer would be f(x)=x-3

Step-by-step explanation:

JulijaS [17]3 years ago

3 0

Answer:

f inverse of x =x-3

Step-by-step explanation:

f(x)=x +3

let f(x) be y

y=x+3

make x the subject of the formula

x=y-3

hence,

f^-(x)=x-3

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Louis bought a burger and soda for $8. Kate purchased a slice of pizza and soda for $9. David purchased a burger, a slice of piz

padilas [110]

Answer:

cost of a burger= $4.5

Cost of soda = $3.5

Cost of a slice of pizza = $5.5

Step-by-step explanation:

Let x = the cost of a burger.

Let y = the cost of a soda.

Let z = the cost of a slice of pizza.

Louis bought a burger and soda for $8. This means

x + y = 8 - - - - - - - -1

Kate purchased a slice of pizza and soda for $9. This means

z + y = 9 - - - - - - - - - 2

David purchased a burger, a slice of pizza, and a soda for $13.50. This means

x + y + z = $13.50 - - - - - - - 3

Substituting x = 8-y and z = 9-y in equation 3, it becomes

8-y + y + 9-y = 13.50

-y -y + y = 13.50 -8-9

-y = -3.5

y = $3.5

Put y = 3.5 in equation 1

x + 3.5 = 8

x = 8 - 3.5 = $4.5

Put x = 4.5 and y = 3.5 in equation 3.

4.5 + 3.5 + z = 13.5

8 + z = 13.5

z = 13.5 - 8 = $5.5

3 0

3 years ago

Which answers are equivalent to ? Choose all answers that are correct. A. 0.08 B. 8% C. 0.32 D. 32%

Llana [10]

A and B are equivalent and C and D are equivalent

4 0

4 years ago

Read 2 more answers

Help me i'll give brainlist

Levart [38]

Answer:

$x=\frac{1}{2}$

Step-by-step explanation:

equation of a circle: $(x - h)^2+(y-k)^2=r^2$

where (h, k) = center and r = radius

From inspection, we can see that the center of the circle = (0, 0)

and the radius = 1

$\implies (x - 0)^2+(y-0)^2=1^2$

$\implies x^2+y^2=1$

Substitute $y=\frac{\sqrt{3}}{2}$ into $x^2+y^2=1$ and solve for $x$ :

$\implies x^2+(\frac{\sqrt{3}}{2})^2=1$

$\implies x^2+\frac{3}{4}=1$

$\implies x^2=\frac{1}{4}$

$\implies x=\pm \sqrt{\frac{1}{4}}$

$\implies x=\pm\frac{1}{2}$

As point P is in quadrant 1, $x$ is positive, so $x=\frac{1}{2}$

7 0

2 years ago

Is a circles area proportional to its radius? Is a circles circumference proportional to its diameter?

tia_tia [17]

In geometry, the area enclosed by a circle of radius r is πr2. Here the Greek letter π represents the constant ratio of the circumference of any circle to its diameter, approximately equal to 3.14159.

6 0

3 years ago

Question

bekas [8.4K]

Answer:

y=-1/5x-8/5

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-2-(-1))/(2-(-3))

m=(-2+1)/(2+3)

m=-1/5

y-y1=m(x-x1)

y-(-1)=-1/5(x-(-3))

y+1=-1/5(x+3)

y=-1/5x-3/5-1

y=-1/5x-3/5-5/5

y=-1/5x-8/5

7 0

3 years ago

What is the inverse of the function f(x) = x + 3​

What is the inverse of the function f(x) = x + 3