Download 28-30 solve for y.notebook

28­30 solve for y.notebook
February 24, 2014
p.28
LT # 5: I can solve for y.
What does solve When you solve for y, you rewrite the equation for y mean?
in ___________________________
Rewrite each equation in slope­intercept form y = mx + b.
y + 5 = 9x
6y - 4 = 6x
y = 5(x + 8)
Area of a triangle. Solve for b.
A = bh 2
y - 9x = 12
4y + 4 = 23 + 6 + 2y
y - 4 = 9(x + 2)
Perimeter of a rectangle. Solve for l.
4y = 5x + 8
x-y=3
y - 10 = 1 (x - 2)
2
Volume of a Cone. Solve for r.
πr2h A = 3
28­30 solve for y.notebook
February 24, 2014
Summary:
p.29
CW p.29­30 (2,5,11,16,17,19,23)
P p.29­30 (all)
For 1­15, rewrite each equation in slope­intercept form y = mx + b.
1. 4. 7. y+8=x
x - y = 10
y = 5(x + 3)
2. 5. 12 = y + x
12x - 24 = 5y + y
8. 2y + 3 = 5x + 6 + y
10. y - 1 = -(x - 2) 11.
y + 1 = -6(x - 7)
3. 2y = 8 + 2x
6. 3x - 6y = 4
9. y = 10(2x - 3)
12.
y-1=
1
(x + 1)
2
28­30 solve for y.notebook
13. 10x = 30 + 5y
February 24, 2014
14. 3y + 2y = 15x -10
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15. 2y = 4x - 6
17. Perimeter of a rectangle. 18. Area of a circle. 16. Volume of a Prism. Solve for r.
Solve for w.
Solve for w.
A = πr2
V = lwh
19. Slope­Intercept form. **20. Surface area of a cylinder. Solve for h.
Solve for b.
S = 2πrh + 2πr2
y = mx + b
"Remembering"
21. Simplify.
22.
23.
Simplify. Write answer as a fraction with no exponents. (­5)­2
24. Simplify. Write answer 25. Simplify.
as fraction with positive exponents.
26. Simplify:
(3x3)2
5x5
28­30 solve for y.notebook
IF
y = 3x + 5
Box 9
a) Write an equation of a different line but has the same y­intercept.
b) Write an equation of line that will be more steep.
c) Write an equation of line that will be parallel.
February 24, 2014
Checking:
none
Rewrite the equation in slope­intercept form.
y ­ 5 = 4(x ­ 2)
28­30 solve for y.notebook
1­4
5­8
9­12
13­16 Functions Review
17­20
21­24
25­27
28­30
February 24, 2014
Shen
3­4
7­8
Shen
Shen 11­12
Shen 15­16
Shen 19­20
Shen 23­24
Shen
Shen
Shen
Shen
Shen
Shen
Shen
27 Shen
29­30
28­30 solve for y.notebook
February 24, 2014
p.28
LT # 5: I can solve for y.
What does solve When you solve for y, you rewrite the equation for y mean?
slope­intercept form
in ___________________________
Rewrite each equation in slope­intercept form y = mx + b.
y + 5 = 9x
6y - 4 = 6x
y = 5(x + 8)
Area of a triangle. Solve for b.
A = bh 2
y - 9x = 12
4y + 4 = 23 + 6 + 2y
y - 4 = 9(x + 2)
Perimeter of a rectangle. Solve for l.
4y = 5x + 8
x-y=3
x-y=3
y - 10 = 1 (x - 2)
2
Volume of a Cone. Solve for r.
πr2h A = 3
28­30 solve for y.notebook
February 24, 2014
Summary:
First, simplify (combine like terms, distributive property) if necessary.
Final answer should be in y = mx + b form.
28­30 solve for y.notebook
CW
P
February 24, 2014
p.29­30 (2,5,11,16,17,19,23)
p.29­30 (all)
Show all work!
2. 12 ­ x = y
5. 2x ­ 4 = y
11. y = ­6x + 4
answers
16. V = w
lh
1 17. P ­ l = w
2
19. y ­ mx = b
23. 1 25
28­30 solve for y.notebook
p.29
February 24, 2014
28­30 solve for y.notebook
p.30
February 24, 2014