The equation y=34x−5

describes the relationship between quantities x and y on the graph below.

Are the quantities in a proportional relationship?

(1 point)
Responses

Yes, because the graph of the equation is a straight line.
Yes, because the graph of the equation is a straight line.

Yes, because the graph of the equation passes through the origin.
Yes, because the graph of the equation passes through the origin.

No, because the graph of the equation is not a straight line.
No, because the graph of the equation is not a straight line.

No, because the graph of the equation does not pass through the origin and the ratio of y/x is not equivalent for each point on the line.
No, because the graph of the equation does not pass through the origin and the ratio of y/x is not equivalent for each point on the line.
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3 answers

To determine if the quantities x and y described by the equation \( y = 34x - 5 \) are in a proportional relationship, we need to consider the characteristics of proportional relationships.

A proportional relationship has the following features:

  1. The equation takes the form \( y = kx \), where \( k \) is a constant (the constant of proportionality).
  2. The graph of a proportional relationship is a straight line that passes through the origin (0,0).
  3. The ratio \( y/x \) is constant for any point on the line.

Looking at the given equation \( y = 34x - 5 \):

  • It is not in the form \( y = kx \) because of the "-5" term.
  • The graph of this equation is a straight line because it is a linear equation, but it does not pass through the origin because when \( x = 0 \), \( y = -5 \).
  • Therefore, the ratio \( y/x \) will not be constant, as it will vary depending on the value of \( x \).

Based on this analysis, the correct response is:

No, because the graph of the equation does not pass through the origin and the ratio of \( y/x \) is not equivalent for each point on the line.

a b c or d

The correct response to indicate whether the quantities are in a proportional relationship is:

D: No, because the graph of the equation does not pass through the origin and the ratio of \( y/x \) is not equivalent for each point on the line.