#11 Find the slope and y-intercept of each equation. Graph the line.
y=-1/2x+4
#15 Find the slope and y-intercept of each equation. Graph the line.
7x+6y=30
#19 Find the slope and y-intercept of each equation. Graph the line.
x+5=0
#39 Find the slope-intercept form of the equation of the line that passes through the given point and has the indicated slope. Sketch the line.
(0,-2) m=3
#45 Find the slope-intercept form of the equation of the line that passes through the given point and has the indicated slope. Sketch the line.
(6,-1) m=undefined
#47 Find the slope-intercept form of the equation of the line that passes through the given point and has the indicated slope. Sketch the line.
(4,5/2) m=0
#51 Find the slope-intercept form of the equation of the line passing through the points.
Sketch the line.
(5,-1) (-5,5)
#53 Find the slope-intercept form of the
equation of the line passing through the points.
Sketch the line.
(-8,1) (-8,7)
#65 Determine whether the lines L1 and L2 passing through the pairs of points are parallel, perpendicular, or neither.
L1: (0,-1) (5,9)
L2: (0,3) (4,1)
#69 Write the slope-intercept forms of the equations of the lines through the given point (a) parallel to the given line and (b) perpendicular to the given line.
(2,1) 4x-2y=3