A Border of Uniform Width Is Printed on a Page $\frac { 1 } { 3 }$

question 135

Multiple Choice

A border of uniform width is printed on a page measuring 18 in. by 11 in. (See the figure below.) The area of the border is 28 in.². Find the width of the border.

• A) 1 in.
• B) \(\frac { 1 } { 3 }\) in.
• C) \(\frac { 1 } { 2 }\) in.
• D) \(\frac { 1 } { 4 }\) in.
• E) \(1 \frac { 1 } { 2 }\) in.

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Definitions:

Y-Intercept

The y-intercept is the point where a graph intersects the y-axis, typically represented as the value of y when x equals 0.

Noncollinear Points

A set of three or more points that do not all lie on a single straight line.

Coefficient Matrix

A matrix consisting of the coefficients of the variables in a set of linear equations.

Linear Equations

Equations of the first degree, where variables are raised only to the power of one and graph as straight lines.