EXAM 1
ab... when a = 3/4 and b = 5/7
15/28
11x + 24 = 3x + 8
x = -2
Name the quadrant or axis in which the point lies
(9,-9)
4
Solve system of equations: SUBSTITUION
{x + 4y = -3}
{-5x + 5y = 15}
(-3,0)
x - 29
-4/5 - (-7/10)
-1/10
3 (5x + 48) = 15x + 144
ARN
Determine whether the equation is linear or non-linear
y = 3x - 3
linear
Solve System of equations: ELIMINATION
{2x - 7y = 3}
{7x + 3y = -17}
(-2,-1)
x/5 - 11 = x/5
4r + (20s +27)
4r+20s+27
| x + 5 | = 5
x1 = -10
x2 = 0
Find the slop of the line that goes through the given points
(6,-2) (-5,8)
slope = -10/11
Solve the system
{ x + y + z = -5}
{ x - y + 5z = -17}
{ 5x + y + z = -1}
(1, -2, -4)
F = ab^2 + acb for a
a = f/ b^2 + bc
-9^2
-81
The sum of three consecutive even integers is 246. Find the integers
80, 82, 84
Find f(4) when f(x) = 5x^2 + 6x
y = 104
Solve: SUBSTITION
{3x + y = 3}
{4x + 3y = -6}
(3,-6)
Solve inequality
3(4x-4) + 19 ≤ 10x -3
x ≤ -5
Every rational number is an integer
True or False
False
A = 1/2bh for b
b = 2A/h
Find slope of the line
x = -4
slope undefined
Solve using MATRIX
{2x + y = 3
{3x + y = 2
Determine whether the lines are parallel, perpendicular, or neither
-4x - 20y = 8
Perpendicular