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Katen [24]
3 years ago
14

Please help!! Thank you so much

Mathematics
1 answer:
stiv31 [10]3 years ago
5 0

Answer:

I think answer is

b. (2,1)

:-)

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Help please! Could you explain it too?
Anettt [7]

Answer:

a) not proportional

b) proportional; k = -\frac{3}{5}

Step-by-step explanation:

a) for any proportional equation, the line must pass through the origin. The equation in a) is y = 4x + 1, and the '+1' is the y-intercept. This means that the line does not pass through the origin, so x and y cannot increase by the same amount (i.e. they are not proportional).

Another way to determine this is is to use the y = kx base. If you have an equation that fits that it's likely proportional.

Here, if the equation was only y = 4x then it'd be proportional because u can see that k = 4. This is not the equation though, and the 4x + 1 doesn't fit to the y = kx formula so it can't be proportional.

b) straight away you can see that there's no 'c' term (y = mx + c) which means the y-intercept is 0, so the line passes through the origin. While this does not immediately mean the line is proportional, you can make sure that it is by checking it fits with the y = kx equation.

y = -(3/5)x fits with y = kx, with k being -3/5

3 0
2 years ago
Find the product. (2x+3)(2x+3)
Len [333]

Answer:

=4x2+12x+9

hope it helps you!

Step-by-step explanation:

6 0
3 years ago
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How do you turn 245/360 into a decimal
erastovalidia [21]

Answer:

68.06%;

Step-by-step explanation:

6 0
2 years ago
How do i figure out [(3x²y³)2] ³
dybincka [34]

Answer:

216x⁶y⁹

Step-by-step explanation:

[(3x²y³)2]³

[6x²y³]³

[6]³.[x²]³.[y³]³

216.x⁶.y⁹

216x⁶y⁹

6 0
1 year ago
Explain how to right 50,000 as a exponents
Darina [25.2K]
50,000 = 5 · 10,000 = 5 · 10⁴
8 0
3 years ago
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