find the equation of a line slope intecept form: y = mx+b m is ? slope b is ? y intercept
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Find the Equation of a Line
Slope intecept form:
y = mx+b
m is ?
slope
b is ?
y intercept
Find the Equation of a Line
y = mx + b
if m = 2 and b = 3
what is the equation of the line?
y = 2x + 3
Find the Equation of a Line
y = mx + b
if m = -4 and b = -3
what is the equation of the line?
y = -4x - 3
Find the Equation of a Line
y = mx + b
if m = (1/3) and b = -5
what is the equation of the line?
y = (1/3)x - 5
Find the Equation of a Line
y = mx + b
if m = (-1/2) and b = 7
what is the equation of the line?
y = (-1/2)x + 7
Graphing a Line Using Slope Intercept Form
y = mx + b
m is slope
slope is
Graphing a Line Using Slope Intercept Form
y = mx + b
b is ?
y intecept: the point on the graph where the line intecepts the y axis
Graphing a Line Using Slope Intercept Form
y = (1/2)x + 3
What is the y intercept?
3
What is the coordinate of the y intercept?
(0,3)
Graphing a Line Using Slope Intercept Form
y = (1/2)x + 3
What is the y intercept? 3
What is the coordinate of the y intercept?
(0,3)
Graphing a Line Using Slope Intercept Form
y = (1/2)x + 3
What is the Slope?
(1/2)
How do we interpret the slope?
Move in pos. y 1 unit
Move in pos x 2 units
Graphing a Line Using Slope Intercept Form
y = (1/2)x + 3
What is the Slope?
(1/2)
How do we interpret the slope?
Move in pos. y 1 unit
Move in pos x 2 units
Graphing a Line Using Slope Intercept Form
y = (1/2)x + 3
you can repeat this process multiple times
3 dots is good enough
to draw the line
Graphing a Line Using Slope Intercept Form
y = (1/2)x + 3
you can repeat this process multiple times
3 dots is good enough
to draw the line
Graphing a Line Using Slope Intercept Form
y = (-3/4)x - 2
What is the y intercept?
-2
What is the coordinate of the y intercept?
(0,-2)
Graphing a Line Using Slope Intercept Form
y = (-3/4)x - 2
What is the y intercept?
-2
What is the coordinate of the y intercept?
(0,-2)
Graphing a Line Using Slope Intercept Form
y = (-3/4)x - 2
What is the slope?
(-3/4)
How do we interpret the slope?
Move Neg Y 3-units
Move Pos X 4-units
Graphing a Line Using Slope Intercept Form
y = (-3/4)x - 2
What is the slope?
(-3/4)
How do we interpret the slope?
Move Neg Y 3-units
Move Pos X 4-units
Graphing a Line Using Slope Intercept Form
y = (-3/4)x - 2
you can repeat this process multiple times
3 dots is good enough
to draw the line
Graphing a Line Using Slope Intercept Form
y = (-3/4)x - 2
you can repeat this process multiple times
3 dots is good enough
to draw the line
Graphing a Line Using Slope Intercept Form
y = (1/3)x - 4
What is the y intercept?
(1/3)
What is the coordinate of the y intercept?
-4
Graphing a Line Using Slope Intercept Form
y = (1/3)x - 4
What is the y intercept?
-4
What is the coordinate of the y intercept?
(0,-4)
Graphing a Line Using Slope Intercept Form
y = (1/3)x - 4
What is the slope?
(1/3)
How do we interpret the slope?
Move Pos Y 1-units
Move Pos X 3-units
Graphing a Line Using Slope Intercept Form
y = (1/3)x - 4
What is the slope?
(1/3)
How do we interpret the slope?
Move Pos Y 1-units
Move Pos X 3-units
Graphing a Line Using Slope Intercept Form
y = (1/3)x - 4
you can repeat this process multiple times
3 dots is good enough
to draw the line
Graphing a Line Using Slope Intercept Form
y = (1/3)x - 4
you can repeat this process multiple times
3 dots is good enough
to draw the line
Point – Slope Formula
y-y1 = m(x – x1)
slope is (1/3)
point is (2,3)
Find the equation of the line.
y – 3 = (1/3)(x – 2)
Point – Slope Formulay – 3 = (1/3)(x – 2)
solve by getting y by itself
Point – Slope Formulay – 3 = (1/3)(x – 2)
solve by getting y by itself