Equations
Find f(9):
f(x)=sqrt(11x+1)
f(9)=10
Algebra: What is the equation for the slope-intercept form of a linear equation.
Algebra: y= mx + b
Find the slope: 2(3x - y) = -10
m = 3
(3x+2)(2x-5)
6x2-11x-10
x^2-x-12
(x-4)(x+3)
Solve: 15x - 7 = 2x + 6
x = 1
solve for m.
y=mx+b
m=(y-b)/x
Write the following equation in slope-intercept form: 5(x + 2y) = 20
y = -1/2x + 2
What is the slope of the following equation:
2x + 2y = 8
slope = -1
(x+3)(x-3)
x2-9
x2+8x+7
(x+1)(X+7)
Solve: 21 + x = 2(x - 6)
x = 33
Algebra: Solve for a: ax + b = c
Algebra: a = (c - b)/x
Write the following equation in Slope-Intercept Form:
2x + 3y = 12
y=-2/3x+4
What is the slope of the line perpendicular to 3x+2y=12
2/3
(2x-5)(3x-7)
6x2-29x+35
x^2-49
(x+7)(x-7)
Solve: x2 - 5 = 11
x = 4
A plumber charges $100 for any home visit plus $25 per hour for the work he does. How much would a 4-hour job cost?
C=25T+100
C=200
What is this linear form called?
y - y1 = m(x - x1)
Point - Slope Form
What is the slope of the line y=4?
m=0
(3x+2)2
9x2+12x+4
x2+2x-35
(x+7)(x-5)
|x-3|+15=12
|x-3|=-3
no solution
Write the equation of this graph in slope-intercept form:
y = -4x -14
What's the slope of the line passing through (3,9) (5,4)
slope: -5/2
(-3x+7)(2x2-5x+4)
-6x3+29x2-47x+28
25x2 - 10x+ 1
(5x -1 )(5x -1 ) or (5x-1)2