Graphing inequalities and solving equations
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Section 2.3
Solve for specified variable
2. W = gh: for g
6. 2x + 3y = 17; for y
10. y = mx + b; for x
14. A = 5H (b + B); for b
Section 2.4
2. {x|x ≥ - 7}
6. {x|-7/8 ≥ x}
10. {x|-3 ≥ x ≥ -7}
Graph the solution set and write it in interval notation
18. x + 2 ≤ -1
22. 7x - 1 ≥ 6x - 1
26. 5/6x ≥ -8
30. -4x ≥ 15
Solve, write the solution using interval notation
34. 8 - 5x ≤ 23
38. 5(x+ 4) ≤ 4(2x + 3)
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The expert graphs inequalities and solving equations. A step by step detailed solution is provided.
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Section 2.3
Solve for specified variable
2. W = gh: for g
divide each side by h, we will get
W/h = gh/h
=> W/h = g
Answer: g = W/h
6. 2x + 3y = 17; for y
Bring 2x to right side, we will get
3y = 17 - 2x
Divide each side by 3, we will get
y = (17-2x)/3
10. y = mx + b; for x
subtract b from each side, we will get
y - b = mx
OR
mx = y - b
divide each side by m, we will get
x = (y -b)/m
14. A ...
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