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3 years ago

Function or not a function

Mathematics

1 answer:

saw5 [17]3 years ago

4 0

Answer:

Not a function.

Step-by-step explanation:

Due to the fact that an element from the first set of components is associated with one and only one element from the other. In this case, as it is a circumference, the elements match with more than one element of the other set. I'll give you an example.

Note: I've tried to keep it as simple as possible, and I'm not natively English so I don't really know how some things are mentioned, but I've also made a picture representation and I think it simplifies.

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Is the equation y=4x+1 proportional? * Yes No

Mumz [18]

Answer:

Step-by-step explanation:

y = 4x + 1 is not a direct variation. Direct variations have the form y = kx. So y = 4x would be a direct variation (k=4), but not y = 4x+1

7 0

3 years ago

Help me on this pleaseee

lisabon 2012 [21]

Answer:

Bolded below are the answers

Step-by-step explanation:

4568 ÷ 8

(4000 ÷ 8) + (560 ÷ 8) + (8 ÷ 8)

500 + 70 + 1

571

Hope this helps!

8 0

2 years ago

Read 2 more answers

Larissa earns a base salary of $500 per week plus 4% commission on any sales. How much will she have to sell to earn $750 in a w

olga55 [171]

Answer:

If Larissa earns $500 per week, she will need $250 more in order to reach $750

7 0

3 years ago

A frame shop owner is working with her apprentice, who takes four times as long as

Lunna [17]

Answer:

1 hour

Step-by-step explanation:

25min=1 poster for the shop owner

25×4=100

100×8=800

800÷25=32 posters in 8hrs for the shop owner

1hr×8=8 posters for the apprentice

thus 40 in total

6 0

3 years ago

Find the x-intercepts of the parabola with vertex (-4,2) and y-intercept (0,-30). Write your answer in this form: (x1, y1),(x2,

Ainat [17]

Vertex form of a parabola
y = a (x - h)^2 + k 

where (h, k) is the vertex 
Substituting the values of h and k.
we get,

y = a(x + 4)^2 + 2 

substituting in the point (0, -30) for x and y
-30 = a (0 + 4)^2 + 2

solve for a,

-30 = 16 a + 2 
-32 = 16 a 
-2 = a 

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

Put y = 0 

-2 x^2 - 16 x - 30 = 0 
-2(x^2 + 8 x + 15) = 0 
x^2 + 8 x + 15 = 0 
(x + 3)(x + 5) = 0 

x = -3
x = -5

3 0

3 years ago