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3 years ago

repost since nobody answered how would i answer this?

Mathematics

1 answer:

pshichka [43]3 years ago

7 0

Answer:

b is not a function

Step-by-step explanation:

To be a function there must be a one to one correspondence.

Each x must only go to one y

b has an x that goes to two different y's

1 goes to 5 and 13. That makes it a relation not a function

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Please help with these questions!!!

klasskru [66]

Answer:

Step-by-step explanation:

Q1: (x-1) * (x+1) * (x-2) * (x+2)

Q2: x'1 = -1/3, x'2 =2

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3 years ago

Help!!!! Somebody help me solve these questions please

kykrilka [37]

Step-by-step explanation:

Area of a trapezium = SOPS/2 × ph

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3 years ago

Read 2 more answers

The points with coordinates (x, -1), (2,2), and (4,3) lie on the same line. What is the value of x?

borishaifa [10]

Find the slope of the line passing throught the points (2, 2) and (4, 3).

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

Substitute:

$m=\dfrac{3-2}{4-2}=\dfrac{1}{2}$

If the point (x, -1) lie on the same line, then the slope of line passing through the points (2, 2) and (x, -1) the same:

Substitute:

$m=\dfrac{-1-2}{x-2}=\dfrac{-3}{x-2}$

We have the equation:

$\dfrac{-3}{x-2}=\dfrac{1}{2}$ cross multiply

$(1)(x-2)=(-3)(2)$

$x-2=-6$ add 2 to both sides

$x=-4$

<h3>Answer: x = -4.</h3>

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3 years ago

How many solutions does the system have?

serious [3.7K]

The system has two solutions.

You can tell because the second equation is a quadratic and the first is a line, so the line passes through the quadratic twice.

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3 years ago

Pascal wants to ride his bike to and from school 3 days a week. His house is 2.58 kilometers from his school. How many meters wi

klemol [59]

Answer:

I thi k the answers is 108.36

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3 years ago

*repost since nobody answered* how would i answer this?

repost since nobody answered how would i answer this?