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Mathematics 7 Online
OpenStudy (anonymous):

What is the slope of the line shown in the graph?

OpenStudy (confluxepic):

What graph?

OpenStudy (anonymous):

OpenStudy (confluxepic):

@Imverytired

OpenStudy (anonymous):

Answer Options: −2 −1 −1 over 2 1 over 2

OpenStudy (confluxepic):

Slope=rise/run

OpenStudy (confluxepic):

Pick two pints and see how much the graph rises and how much the graph runs.

OpenStudy (anonymous):

i think its the last one

OpenStudy (confluxepic):

As you can see, it doesn't rise; it falls instead. So the rise will be negative.

OpenStudy (anonymous):

so c ?

OpenStudy (confluxepic):

Yes.

OpenStudy (anonymous):

Yay! Thank you! can u help with a couple more ?

OpenStudy (confluxepic):

Yes. :)

OpenStudy (anonymous):

Which statement best explains if the graph correctly represents the proportional relationship y = 3.5x?

OpenStudy (confluxepic):

Statements?

OpenStudy (anonymous):

OpenStudy (anonymous):

Answer options: No, the points shown on the line would not be part of y = 3.5x No, proportions cannot be represented on a graph Yes, the points shown on the line would be part of y = 3.5x Yes, all proportions can be shown on the graph of this line

OpenStudy (anonymous):

Can you kinda walk me thru this? I don't really get this at all...

OpenStudy (confluxepic):

I'll try. :)

OpenStudy (anonymous):

Thanks

OpenStudy (confluxepic):

You know the orange dots on the graph? Tell me the points in (x,y) format.

OpenStudy (anonymous):

3.5, 7

OpenStudy (confluxepic):

Those are the y-values.

OpenStudy (anonymous):

y = 3.5, 7 x = 1, 2

OpenStudy (confluxepic):

http://prntscr.com/9pdmeq

OpenStudy (confluxepic):

The x value of 1 is paired with the y value of 3.5.

OpenStudy (anonymous):

OHHHH so 1, 3.5 2, 7

OpenStudy (confluxepic):

Yes.

OpenStudy (anonymous):

ok now what

OpenStudy (confluxepic):

Now fit those values into the equation.

OpenStudy (confluxepic):

y=3.5x When x is 1, what is y?

OpenStudy (anonymous):

3.5

OpenStudy (confluxepic):

Correct. Now don't you notice how on the graph when x is 1, y is 3.5?

OpenStudy (anonymous):

yes so it would be c ?

OpenStudy (confluxepic):

If you made x equal to 2 it would make y equal to 7. (2,7) is also a point on the graph. So that means that the graph is indeed the graph of y=3.5x.

OpenStudy (confluxepic):

Yes. C is correct. :)

OpenStudy (anonymous):

Omg thank you so much! You are a really big help i actually understand it now

OpenStudy (confluxepic):

You're welcome. :)

OpenStudy (anonymous):

Can you help me with one last q ?

OpenStudy (confluxepic):

Sure. :)

OpenStudy (anonymous):

tysm oh my gosh

OpenStudy (anonymous):

Compare the table and equation.

OpenStudy (anonymous):

OpenStudy (anonymous):

Equation: y = 3x Which representation has the greatest slope?

OpenStudy (anonymous):

Answer Options: The equation has the greatest slope. The table has the greatest slope. The table and equation have the same slope. Their slopes cannot be determined.

OpenStudy (confluxepic):

The table is modeled after the equation so they have the same slope.

OpenStudy (confluxepic):

The table IS the equation in a different format.

OpenStudy (anonymous):

can u explain it a little bc i still don't really get it

OpenStudy (confluxepic):

Look at the table. Every time the x value goes up by 1, the y value goes up by 3. So the rise, which is 3, is divided by the run, which is 1. (Rise/run is the slope formula.) So 3/1 is 3. The slope is 3. Look at the equation. Plug in a number for x. When x is 1, y is 3. When x is 2, y is 6. So the slope is the same. Every time x is increased by 1, y is increased by 3. The slope is 3.

OpenStudy (anonymous):

WoW!! Okay. I actually get it now!!!! And i submitted the assignment @confluxepic

OpenStudy (anonymous):

Thanks @confluxepic for helping me with this assignment! I am now closing this question so guys i dont need help anymore! thanks!!!

OpenStudy (confluxepic):

You're welcome. :)

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