Solving linear equations and plotting them on coordinate planes
What is the slope of the line y = 2x + 3?
In slope-intercept form y = mx + b, m represents the slope
Which point lies on the line y = -x + 4?
A point lies on a line if it satisfies the equation when substituted
Find the x-intercept of 3x + 2y = 12
x-intercept occurs when y = 0. Set y=0 and solve for x
What is the equation of a line with slope -1 passing through (2, 1)?
Use point-slope form: y - y1 = m(x - x1)
Which lines are parallel?
Parallel lines have equal slopes but different y-intercepts