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2 years ago

if the output and input of a linear equation are proportional, whare will the graph of the equation cross the x axis

Mathematics

1 answer:

sineoko [7]2 years ago

5 0

Answer:

at x=0 (the origin)

Step-by-step explanation:

The equation for a proportional relationship is ...

y = kx

The equation of a straight line is ...

y = kx +b . . . . . for some y-intercept b

<h3>Comparison to general line</h3>

Comparing the proportional relation to the relation for a general line, we see that b=0 in the proportional relation. That is, the y-intercept is at y=0, the origin of the Cartesian coordinate plane.

The graph crosses the x-axis at (0, 0), or x=0.

Additional comment

In y=kx, the value k is called "the constant of proportionality." It is also the slope of the line on a graph.

In the usual representation of the slope-intercept equation of a line, y=mx+b, the slope of the line is represented by 'm'. In the above, we used 'k' for that purpose, to facilitate comparing the equations.

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Sarah bought a binder for $7.25 and six folders that totaled $9.05 how much did each folder cost

creativ13 [48]

Answer:

Each binder costs 30 cents or $0.30

Step-by-step explanation:

If Sarah's total was $9.05 and the binder costs 7.25 then in order to find the price of the folders you must subtract the cost of the binder (7.25) from the total (9.05) which leaves $1.80 as the amount she paid in total for 6 folders. Next, to find the amount spent per folder divide 1.80 by the number of folders which is 6 and your final answer should be 0.30.

9.25= 7.25+6x (next subtract 7.25 on both sides)

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3 years ago

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2 years ago

The 175th anniversary of the completion of the Erie Canal was in the year 2000. If it took 8 years to dig the canal, in what yea

docker41 [41]

Answer:

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Step-by-step explanation:

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3 years ago

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Order these numbers from least to greatest. 11 , 3.30 , 175 , −10

timurjin [86]

If you would like to order the following numbers from least to greatest, you can do this using the following steps:

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3 years ago

6. Nathan buys packages of bacon. This chart shows the numbers of

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Answer:

A The data is proportional and the unit rate per package is $8 This is because y= 8x

Step-by-step explanation:

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2 years ago