2. 1. Given the equation, 4y = − 3x + 4 a)Rewrite the equation in slope-intercept form. − 3 4 − 3 4 y = 1 OR (0, 1) − 3 4 − 3 4 4 4 4 −3−3 4 Algebra I Concept Test # 7 – Graphing Lines Practice Test Divide m = y = x + 1 b)Identify the slope. c)Identify the y-intercept. d)Graph: Note: Plot the y-intercept first, and then apply the slope. © 2007-09 by S-Squared, Inc. All Rights Reserved. Slope – intercept form: y = mx + b

3. 1 2 Note: To find the x-intercept, let y = 0. Note: To find the y-intercept, let x = 0. a)Find the x- and y-intercepts. b)Graph: c)Identify the slope. 2.Given the equation: x – 2y = 4, x – intercept = (4, 0) y – intercept = (0, – 2) x – intercept = (4, 0) y – intercept = (0, – 2) x – 2y = 4 2 4 x - intercept y - intercept x – 2(0) = 4 x – 0 = 4 x = 4 0 – 2y = 4 – 2y = 4 y = – 2 2 4 Algebra I Concept Test # 7 – Graphing Lines Practice Test m = =

4. 3. a)On the coordinate plane provided, graph x = − 1 b)On the same coordinate plane, graph y = 4 c)Find the slope of x = − 1 d)Find the slope of y = 4 e)Identify the point of intersection Undefined 0 0 (– 1, 4) Algebra I Concept Test # 7 – Graphing Lines Practice Test

5. 4. Using the following graph, a)Find the y-coordinate when x = 0 y = − 3 x = 3 Algebra I Concept Test # 7 – Graphing Lines Practice Test Notice: You are looking for the unknown coordinate of an ordered pair when a coordinate is given. b)Find the x-coordinate when y = − 5 y = − 5 x = 0

6. 5.Given the following graph: a) Identify the slope Algebra I Concept Test # 7 – Graphing Lines Practice Test 3 2 − 2 3 2 m = b)Find the slope of a line perpendicular to the given line. c)Find the slope of a line parallel to the given line.

7. 6.Which of the following has a steeper slope: Algebra I Concept Test # 7 – Graphing Lines Practice Test y = x + 1 or 1 3 y = x – 1 2 3 Note: The line with the steeper slope is the line that has the greater numerical slope value. Notice, 2 3 1 3 > y = x – 1,has the steeper slope. 2 3