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Karo-lina-s [1.5K]
3 years ago
10

Stella graphs the equation y=1/3x – 2

Mathematics
2 answers:
faltersainse [42]3 years ago
5 0

we have

y=\frac{1}{3}x-2

<u>Statements</u>

<u>case A)</u> The graph is a straight line.

The statement is True

Because, this is a linear equation (see the attached figure)

<u>case B)</u> The line passes through the origin.

The statement is False

Because the point (0,0) is not a solution of the equation

Verify

Substitute the value of x and y in the equation

0=\frac{1}{3}*0-2

0=-2 ------> is not true

the point (0,0) is not a solution

therefore

The line does not pass through the origin

<u>case C)</u> The line passes through the point  (0,-2)

The statement is True

Because the point (0,-2) is a solution of the equation

Verify

Substitute the value of x and y in the equation

-2=\frac{1}{3}*0-2

-2=-2 ------> is true

the point (0,-2) is a solution

therefore

The line passes through the point (0,-2)

<u>case D) </u>The slope of the line is 3

The statement is False

Because, the slope of the line is m=\frac{1}{3}

<u>case E)</u> The y-intercept of the line is 2

The statement is False

we know that

The y-intercept is the value of y when the value of x is equal to zero

so

For x=0

find the value of y

y=\frac{1}{3}*0-2=-2

the y-intercept is equal to -2


ExtremeBDS [4]3 years ago
4 0

Answer:

Option A and Option C are true.

Step-by-step explanation:

Equation : y = \frac{1}{3}x-2

General form of equation of straight line : y =mx+c --1

where m is the slope of line

A)The graph is a straight line.

True . It is in the form of equation of straight line.

B)The line passes through the origin.

Origin = (0,0)

Plug x = 0 in equation

So,y = \frac{1}{3}(0)-2

y = -2

So, False

C)The line passes through the point (0, –2)

Plug x = 0 in equation

So,y = \frac{1}{3}(0)-2

y = -2

So, True

D)The slope of the line is 3.

On comparing with 1

Slope = \frac{1}{3}

So, False.

E)The y-intercept of the line is 2.

To calculate the y intercept  

Plug x = 0 in equation

So,y = \frac{1}{3}(0)-2

y = -2

So, False

Hence Option A and Option C are true.

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