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Algebra
Tutor: None Selected Time limit: 1 Day

Jul 30th, 2015

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1.

Starting from the origin (0, 0) 

move 4 units along the positive x-axis (right) 

and then 2 units along the negative y-axis (down).

You will reach at the point (4, -2) which is point E in the graph. 

ANSWER: (3) Point E


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2.

2x - y = 9

y-intercept is the point at which the line intersects the y-axis.

To find the y-intercept, put x = 0 in the equation of the line

2*0 - y = 9

0 - y = 9

-y = 9

Multiply both sides by -1

y = -9


So, the y-intercept is (0, -9).

ANSWER: (3)  (0, -9)


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3.

3y - 4x = 8

x-intercept is the point at which the line intersects the x-axis.

To find the x-intercept, put y = 0 in the equation of the line

3*0 - 4x = 8

0 - 4x = 8

-4x = 8

x = 8/(-4)

x = -2


So, the x-intercept is (-2, 0).

ANSWER: (5)  (-2, 0)


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Please let me know if you need any clarification. I'm always happy to answer your questions.
Jul 30th, 2015

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