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Big Ideas Math Integrated I, 2016 View details

2. Writing Equations in Point-Slope Form

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Exercise 1 Page 175

What is the form of an equation in point-slope form?

Slope: -2
Point: (-5,5)

Practice makes perfect

Equations in point-slope form follow a specific format. y- y_1= m(x- x_1)In this form, m is the slope of the line and ( x_1, y_1) is a point on the line. Let's modify the given equation just a little bit, without simplifying it. y-5=-2(x+5) ⇔ y- 5= -2(x-( -5)) Now, we can easily identify the slope and one of the points. Slope:& -2 Point:& (-5, 5)