Linear Function

Equation of a line in the slope-intercept form The equation of a straight line y=mx+k is called the slope-intercept form … the form which is solved for y in terms of x. Intercept In the slope-intercept form, constant term k is the y-intercept. • The y-intercept indicates the place where the line crosses the y-axis.
Slope In the slope-intercept form, the coefficient of x term is the slope. • The slope of a line means the ratio of the vertical change to the horizontal change between two points on the graph of a line. slope= i.e. slope= • Especially, when change in x is 1 unit slope= =(change in y) Thus, (for every 1 unit to the right) slope= the change in y • When a line goes up left to right it has a positive slope. When a line goes down left to right it has a negative slope.	Finding the slope with a fraction When the change of y for the change of 1 x-unit is a fraction, in order to find the slope: Find two lattice points (points where two grid lines meet) on the line. Draw a right triangle like a stair step. From the first point to the second point, think of the vertical change and the horizontal change. slope=
QuestionFind the equation of the line below. (Select the correct answer from the right column.) Graph[1 / 12]	Equations Correct → , Incorrect → Result → Help Next