Use the graph or table to write a linear function that relates y to x. Input, x
1
2
3
4
Output, y
-5 -10 -15 -20

Y= -5x
Every time you multiply x with -5 you get y Ex: -5 • 3 = -15

Where m is the slope of the line and b is the y-intercept of the line, or the y-coordinate of the point at which the line crosses the y-axis. to write an equation in slope-intercept form, given a graph of that equation, pick two points on the line and use them to find the slope. this is the value of m in the equation.