Lesson 2-4Lesson 3-4, CHAPTER v
f M >Get Read y!
Solving Equations
6
Solve each equation. If the equation is an identity, write identity. If it has no
solution, write no solution.- 3(2 — 2x) = —6(x — 1)
- 4x — 1 = 3(x + 1) + x
- 5x = 2 - (x - 7)
4^ Solving Inequalities
Solve each inequality.- 5x + 3 < 18
- —3 f — 5 < 34
- 8s + 7 > - 3 ( 5 s - 4)
- 3 p + 1 — — p + 5
- |( 6 c - 4) = 4 + c
- v + 5 = v - 5
- ~+l>-6
- -(7 /+ 1 8 )-2 /< 0
- kx + 6) + l> -5
Lesson 4-5 # W riting Functions
- The height of a triangle is 1 cm less th a n twice the length of th e base. Let x = the
length of th e base.
a. W rite an expression for the height of th e triangle.
b. W rite a function rule for th e area of th e triangle.
c. W hat is th e area of such a triangle if th e length of its base is 16 cm?
Lessons 5 - 3 , 4p Graphing Linear Equations
5-4, and 5-5
Graph each equation.
- 2x + 4 y = - 8 15. y- oX + 3 16. y+ 5 = - 2 ( x - 2 )
Lo o k i n g A h ead V o cab u l ar y
- Two answ ers to a q u estio n are said to be inconsistent if they could n o t b o th be true.
Two answ ers to a q u estio n are said to be consistent if they could b o th be true. If
th ere is no solution th at m akes b o th eq u atio n s in a system of two lin ear equations
true, do you th in k the system is inconsistent o r consistent? - After a team loses a game, th ey 're eliminated f r o m a t o u r n a m e n t. T h e elimination
method is a way to solve a system of equations. Do you th in k using the elim ination
m e th o d adds or deletes a variable from a system of equations?
Ch ap t er 6 Sy st e m s o f Eq u a t i o n s a n d I n e q u a l i t i e s 361