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Slope-Intercept Form

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alyssa cranford

on 18 March 2014

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Transcript of Slope-Intercept Form

Slope-Intercept Form
By:Alyssa Cranford
1st period

Slope-Intercept form
B) Slope = 0, y-intercept = -5
y =
y =
y = -5 You would substitute the given values for m and b. Simplify if necessary

What Does it mean?
A linear equation is an algebraic equation in which each term is either a constant or the product of a constant and a single variable.
Slop-Intercept Form
Write a linear equation in slope-Intercept form.
Graph a line using slope-intercept form.
Slope-Intercept Form
Graph the line with the slope -2 and y-intercept 4.

Step 1: The y-intercept is 4, so the line contains (0,4). Graph (0,4).
Step 2: Slope = Rise over Run so it would be -2 over 4
Count down two units down and 4 unit to the right from (0,4).
Step 3: Draw a line through the two points.
Slope-Intercept Form

Who invented the slope-Intercept Form
Slope intercept form (y = mx + B) author is really unknown. However there are written text dated back to 1757 that explain the equation referenced as the slope intercept form.
Slope-Intercept Form
Write the equation in slope-intercept form
Graphing by Using Slope and y-intercept.

slope "m" = 3/1= 3
y - y1 = m(x - x1)

We know m now, and also know that (x1, y1) = (3,2), and so we have:

y - 2 = 3(x - 3)
That is a perfectly good answer, but we can simplify it a little:

y - 2 = 3x - 9

y = 3x - 9 + 2
y = 3x - 7
EX 1
Slope- intercept form

Vocabulary words
Slope Intercept Form of Equation of Line - y = mx + b
Standard Form of Equation of Line - Ax + By = C
Letter that is slope - m 
Letter that is y-intercept - b
Words in word problem that mean slope - Rate of Change

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