Exam 3: Linear Equations in Two Variables

The length and width of a rectangular garden are 16 meters and 11 meters,respectively.A walkway of width x surrounds the garden. ?Write the equation for the perimeter y of the walkway in terms of x. ?

Find the slope and y-intercept (if possible)of the equation of the line.Select the correct answer for the line.? $x + 3 = 0$ ?

The following is the slope of line representing annual sale y in term of time x in year.Use the slope to interpret any change in annual sales for a one-year increase in time. ​ The line has a slope of m = -20. ​

Find the slope-intercept form of the equation of the line that passes through the given point and has the indicated slope m.Select correct answer for the line.? $\mathrm { P } ( 0,0 ) , m = 2$ ?

Write the equation of the line that passes through the point P(4,3)and is perpendicular to the line y = - 5x + 2. ?

A pharmaceutical salesperson receives a monthly salary of $2600 plus a commission of 2% of sales.Select a linear equation for the sales-person's monthly wage W in terms of monthly sales S. ?

Find the slope of the line passing through the pair of points. ? (0,-8), (-6,0) ?

Find the slope-intercept form of the equation of the line that passes through the given point and has the indicated slope m.Select correct answer for the line. ​ P(2)4,-8.7),m = -4 ​

Find the slope-intercept form of the equation of the line that passes through the given point and has the indicated slope m.Select correct answer for the line. ? P(4, $\frac { 8 } { 7 }$ ),m = 0 ?

Use the intercept form to find the equation of the line with the given intercepts.The intercept form of the equation of a line with intercepts (a,0)and (0,b)is ?? $\frac { x } { a } + \frac { y } { b } = 1 , a \neq 0 , b \neq 0$ ? X-intercept: $\left( - \frac { 1 } { 6 } , 0 \right)$ y-intercept: $\left( 0 , - \frac { 2 } { 7 } \right)$ ? ?

Find the slope of the line passing through the given pair of points. ? (0,9), (2,0) ?

Use the intercept form to find the equation of the line with the given intercepts.The intercept form of the equation of a line with intercepts (a,0)and (0,b)is $\frac { x } { a } + \frac { y } { b } = 1 , a \neq 0 , b \neq 0$ ?? Point on line: (4,6) X-intercept: (c,0) Y-intercept: (0,c),c ? 0 ? ?

Find the slope of the line passing through the pair of points. ? (10,12), (12,-12) ?

Find the slope of the line passing through the pair of points. ​ (4)1,3.1), (-3.8,3.1) ​

Find the slope of the line. ​ Y = 9x + 25 ​

Determine whether the lines are parallel,perpendicular,or neither. ? L1: y = $\frac { 1 } { 2 }$ x - 4 L2: y = - $\frac { 1 } { 2 }$ x - 2 ?

Find the slope-intercept form of the equation of the line passing through the points.Select the correct answer for the line.? $P ( 6 , - 2 ) , Q ( - 6,6 )$ ?

Estimate the slope of the line.​ ​

Find the slope of the line passing through the pair of points. ? (8,-4), (1,-4) ?

A discount outlet is offering a 70% discount on all items.Select a linear equation giving the sale price S for an item with a list price L. ?