Mid-Chapter Quiz
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You are given everything you need to use point-slope form.
y=-2.5x+4.5
Using the given point and slope, we can apply the point-slope form to write and graph the equation. We will start by writing the equation.
An equation in point-slope form follows a specific format.
y- y_1= m(x- x_1)
In this format, m represents the slope and the point ( x_1, y_1) lies on the graph of the line. We are given the point ( 1, 2) and the slope - 2.5, so we have everything we need to create a point-slope form equation.
Substitute x_1= 1,y_1= 2,m= - 2.5
Distribute - 2.5
- a(- b)=a* b
a * 1=a
LHS+2=RHS+2