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Sergeeva-Olga [200]
3 years ago
15

Which phrase best describes the graph of a proportional relationship

Mathematics
2 answers:
Setler [38]3 years ago
4 0
In proportional, it is y/x=k or y=kx
basically it is like y=mx+b, it is  a line
Vlad1618 [11]3 years ago
4 0

the complete question is

Which phrase best describes the graph of a proportional relationship?

A.a straight line passing through the origin

B.a straight line

C.a curve

D.not a straight line

we know that

A relationship between two variables, x, and y, represent a proportional relationship (direct variation) if it can be expressed in the form

\frac{y}{x}=k\\ or\\ y=kx

the equation y=kx is a straight line passing through the origin with slope equal to k

therefore

the answer is the option

A.a straight line passing through the origin

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Hi there!

I might be able to help you!

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<u>Determining whether a relation is a function on a graph is relatively easy by using the vertical line test. If a vertical line crosses the relation on the graph only once in all locations, the relation is a function. However, if a vertical line crosses the relation more than once, the relation is not a function</u>. <u>X = y2 would be a sideways parabola and therefore not a function.</u> Good test for function: Vertical Line test. If a vertical line passes through two points on the graph of a relation, it is <em>not </em>a function. A relation which is not a function. The x-intercept of a function is calculated by substituting the value of f(x) as zero. Similarly, the y-intercept of a function is calculated by substituting the value of x as zero. The slope of a linear function is calculated by rearranging the equation to its general form, f(x) = mx + c; where m is the slope.

A relation that is not a function

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It's up there!

God bless you!

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