math vocab chap 5
what is the slope of all horizontal lines?
0
when perpendicular lines intersect, what kind of angles do they form?
90 degree right angles
what is the standard form of a linear equation?
Ax+By=C
what do all y intercepts have in common?
X intercept of 0
what do all x intercepts have in common?
Y intercept of 0
what does the variable b represent in slope intercept form ?
b = y intercept
what does the variable m represent in slope intercept form?
m = the slope
write all the ways we can write slope
m, rise/run, triangle y/triangle x, m= y2-y1/ x2-x1
What relationship do perpendicular lines have with regards to their slope?
opposite reciprocal slope
What relationship do parallel lines have with regards to their slope?
same slope
what is the slope of all vertical lines?
undefined
what is special about the equations for all vertical lines?
x = x coordinate
what is special about the equations for all horizontal lines?
y = y coordinate
what is the slope- intercept form of an equation?
y=mx+b
