Linear Equations
X+12=7
X=-5
(4,-1)(-2,-1)
M=-1
What is a Porportional Relationship?
A Proportional relationship is when x and y are equivalent.
Find the Slope and Y-intercept. Y=4x-5
Slope is 4 and the Y-intercept is 5.
Write the equation in Standard form. (3,0), m=-2/3
Y-0=-2/3(x-3)
2.5+y=-3.5
Y=-6
What is Slope?
Slope is the change in y coordinate with respect to the change in x coordinate of that line.
is this a Proportional Relationship? (3,1)(6,2)
Yes this is a Porportional relationship.
Find the Slope and y-intercept. Y=-7x+12
Slope is -7 and y-intercept is 12
Write the equation in Point-Slope form. (4,8), m=3/4
Y-8=3/4(x-8)
-7.8x-=-1.56
X=-0.2
(5, 3), (5, 8)
Undefined. (:
Is this a Proportional relationship? (2,4)(5,8)
No this is not a Porportional Relationship
Rewrite the equation into slope intercept form.6x-1=y
Y=6x-1
Is this equation in Point-Slope form? 2x+3y=12
No.
What is a Linear Equation?
A Linear Equation is an equation between two variables that gives a straight line when plotted on a graph.
(10, 4), (4, 15)
-11/6
Is this a Proportional relationship? (10,1)(15,2)
Yes this is a Porportional Relationship
Rewrite equation into slope intercept form.y=2x+1
It is in Slope Intercept form. :)
Write the equation in Point-Slope form. (1,-3), m=4
Y+3=4(x-1)
Is this a Linear Equation?
Y=2
Yes
(-3,6)(2,6)
M=0
Is this a Proportional relationship? (28,7)(4,1)
Yes this is a Porportional Relationship
Find the y-intercept. Y=18x+7
Y-intercept = 7
Solve. 1+2
3