Plans for a bridge are drawn on a coordinate grid. One girder of the bridge lies on the line y 9x + 3.
A perpendicular brace passes through the point (-7,3).
Write an equation of the line that contains the brace.
A. Y - 3 = -9 (x + 7)
B. y -3= -1/9 (x + 7)
c. y -7=1/9 (x+3)
D. Y-7 = -9 (x - 3)

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step-by-step explanati∵∵∴∴on:

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step-by-step explanation:

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x