Find the slope
y=2x
2
3x = 6
x = 2
x + y = 2
x - y = 2
x = 2
x2 + 6x + 5
(x+3)(x+2)
Find the y intercept
y= 4x + 1/6
(0, 1/6)
2x + 5 = 15
x = 5
3x - y = 7
2x + y = 8
x = 3
36x2 + 6x + 6
6(6x2 + x + 1)
Solve for y
3y + 6x = 18
y = -2x + 6
3(x + 2) - 5 = 4(x + 5)
x = -19
3x + 2y = 9
2x + 6y = 6
HINT: You have to multiply each equation by a number to eliminate x
y = 0
x2 - 2x - 80 = 0
(x - 10)(x+8)
Find the linear equation
(2,3) (-5,10)
y = -1x + 5
x/2 = 6
x = 12
x - 2y = 8
x = 5 - y
x = 6
7x2 + 12x - 27 = 0
(x + 3)(7x - 9)
Form a linear equation and solve based on the word problem
Tammy has to pay $25 for her gym membership upfront and $5 per month after that. How much has she paid after 6 months?
$55
x2 + 6x + 16
x = -3 +- i root 7
3x - y = 2
6x - 2y = -8
No Solution
Simply this factored problem
(x+1)2 - 8(x-1) + 16
x2 - 6x + 25