Transcript Nov 15 1. SOLVE THE EQUATION 2(x +1) = 3x + 2 2x + 2 = 3x + 2 x=0 2.

Nov 15
1. SOLVE THE EQUATION
2(x +1) = 3x + 2
2x + 2 = 3x + 2
x=0
2. SOLVE THE INEQUALITY
2(x +1) < 3x + 2
2x + 2 < 3x + 2
x>0
3. SOLVE THE EQUATION
2x + 4 - 4x =17
-2x + 4 =17
-2x =13
x = -6.5
4. SOLVE THE INEQUALITY
2x + 4 - 4x >17
-2x + 4 >17
-2x >13
x < -6.5
5. SOLVE THE EQUATION
-4 = x + 2
-6 = x
x = -6
6. SOLVE THE INEQUALITY
-4 < x + 2
-6 < x
x > -6
7. SIMPLIFY THE EXPRESSION
(3x - 7x +12)- (3x + 6x +10x)
3
2
3
2
3x - 7x +12 - 3x - 6x -10x
2
-13x -10x +12
3
2
3
2
8. Which graph models the
equation 3x + 2y = 6?
Step 1: Solve for y
Step 2: Complete table
Step 3: Graph
8. Which graph models the
equation 3x + 2y = 6?
2y = -3x + 6
y = (-3/2)x + 3
9. Determine whether the equation
is a linear equation. If so, write the
equation in standard form.
8n – 9m = 6 – 3m
8n – 6m = 6
-6m + 8n = 6
6m – 8n = -6
10. Graph the equation.
y = 4x – 4
11. Graph the equation.
-4x + 4y = 12
4y = 4x + 12
y=x+3
12. If g(x) = x2 + 4x – 5, find g(-4).
(-4)2 + 4(-4) – 5
16 – 16 – 5
-5
13. Explain the vertical line test?
14. Solve.
3x – 2(x + 3) = x
3x – 2x – 6 = x
x–6=x
-6 = 0
Solve:
4(2a -1) = -10(a - 5)
Answer: a = 3
2. Four more than twothirds of a number is 22.
Find the number.
Answer: 27
3. Solve for h:
Answer: h
2
V=pi r h
2
= V/(pi r )
4. Simplify:
(2 / 3)(6x + 2y)+ (1/ 3)(6x - 3y)
Answer: 6x + (1/3)y
5. Find n, then name the
property being used in the
equation.
8 = n +8
Answer: n = 0, additive
identity
6. Which step contains the
first mistake? 6(x + 2) - 4 = -10
Step 1: 6x +12 - 4 = -10
Step 2: 6x + 8 = -10
Step 3: 6x = -2
Step 4: x = -1 / 3
7. Simplify:
3(x - 4)- 5(x - 3)
Answer: -2x + 3
8. If the number of apps on
Nicole’s phone is increased by
16, her phone will have three
times the original number of
apps. How many apps were
on her phone originally?
9. Which equation has no
solution?
#1 5y - 9 = -3y + 7
#2 6m +12 - 4 = -8 - 2
#3 2x + 5 = 5x - 9 - 3x
#4 -2 +10n = 7n -1+ n
10. Simplify:
-3(3a + 4c)- (-8- 4c)
Answer: -9a – 8c + 8
11. Eight more than five
times a number is -62. Find
the number.
Answer: -14
1.C
2.D
3.D
4.A
5.A
6.C
7.A
8.D
9.A