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2 years ago

Tell whether each relationship is a function.

Mathematics

1 answer:

Serhud [2]2 years ago

8 0

Answer:

3 is a function.

1 and 2 are not.

Step-by-step explanation:

1 and 2 are not functions because we can draw a vertical line which passes through more than one point on the graphs.

You cant do this on graph 3 so it is a function.

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Simplify. 10/-4 - √3

Degger [83]

Answer:

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2 years ago

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Write the equation of the line shown in point-slope form. (2,1) (3,8)

Ulleksa [173]

Answer:

The line equation that passes through the given points is 7x – y = 13

Explanation:

Given:

Two points are A(2, 1) and B(3, 8).

To find:

The line equation that passes through the given two points.

Solution:

We know that, general equation of a line passing through two points (x1, y1), (x2, y2) in point slope form is given by

$\frac{(y- y1)}{(x-x_1)}= \frac{((y_2- y_1)}{(x_2- x_1 )}$

${(y- y1)= \frac{((y_2- y_1)}{(x_2- x_1 )}\times(x-x_1)$ ..........(1)

here, in our problem x1 = 3, y1 = 8, x2 = 2 and y2 = 1.

Now substitute the values in (1)

$(y-8) = \frac{(1 - 8)}{(2 - 3)}\times(x- 3)$

$(y -8) = \frac{(- 7)}{(-1)}(x-3)$

y – 8 = 7(x – 3)

y – 8 = 7x – 21

7x – y = 21 – 8

7x – y = 13

Hence, the line equation that passes through the given points is 7x – y = 13

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3 years ago

1- AT OAKNOLL SCHOOL, 90 OUT OF 270 STUDENTS OWN COMPUTERS. WHAT PERCENT OF STUDENTS OF OAKNOLL SCHOOL DO NOT OWN COMPUTERS? ROU

V125BC [204]

1. 270÷90=3=30% have and 70% don't have a computer.

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3 years ago

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Determine the value of x. 30° 45° 20° 60°

barxatty [35]

Answer:

x=30

Step-by-step explanation:

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6x=180

x=180/6=30

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3 years ago

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Elena L [17]

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Step-by-step explanation:

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