Slope Intercept Form (Algebra 1)
What is the slope of a horizontal line?
0
What does -3/-6 simplify down to?
1/2
At what point do you start graphing the line y=x
A zero on the y-axis
What happens when you subtract a negative
It becomes addition
What is the Y-Intercept
The point where the equation of a line crosses the Y-axis.
What is the y-intercept of a vertical line
There is none.
What is the slope of a vertical line?
Undefined
How do you count the slope for the line y=x
Up 1 Right 1
To write the equation of a line, you need to find what?
slope (m) and y-intercept (b)
The m in the y=mx+b is the
slope of the line (rise over run)
What is the equation for a vertical line that goes through 5
x=5
Write the equation if b = -7 and m = 1/2
y = 1/2x - 7
The b in y=mx+b is the
y-intercept (where the line crosses the y-axis)
Write the equation if b = 3 and m = -2
y= -2x+3
What is the equation for a horizontal line that goes through 5
y=5
What is slope-intercept form for equation of a line.
y=mx+b