Homework Help: Algebra

Posted by lizzie on Saturday, August 6, 2011 at 6:42pm.

Are these answer"s correct?

What is the equation for the line that passes through the (-2,2) and has a slope of 5?
Answer-
Y=5x + 2
Y=5x +12
Y=5x -2
None of these 每 I believe this is the answer

Find the value of x^3+□2x■^2-3 when x =3.
Answer- 42

Solve 5x+3=13 for x.
Answer-2

Compare the quantity in Column A with the quantity in Column B.
Column A Column B
The solution of The solution of
2(x-3) = 6x 3x + 2 + 5x + 6
Answer-The quantity of Column B is greater

Solve for x in |x-3| >8.
Answer-

Compare the quantity in Column A with the quantity in Column B.
Column A Column B
6z-5 if z=-2 -6z 每 5 if z = 2
Answer-The quantities are equal

What is the equation for the line that passes through the point (5, 5) and a slope of 2?
Answer-y=2x+ 2

Evaluate □2y■^(2 ) (x+y) when x =8 and y+3
Answer-198

Solve 5x-4 = 41 for x.
Answer-9

What is the equation for the line that passes through the point (0, 0) and has a slope of -1/2?
Answer-y=1/2x

Which is the solution of 2x + 5 > -1?
Answer-
X > 6
X < -6
X > 2
None of these- I believe the answer is this one

Algebra - Henry, Sunday, August 7, 2011 at 5:16pm
1. Given: (-2,2), m = 5.

y = mx + b = 2,
5(-2) + b = 2,
b = 12,
y = 5x + 12.

3. 5x + 3 = 13,
5x = 13 - 3 = 10,
X = 2.

4. You need a sign between 6x and 3x.

5. [x-3] > 8,
+-(x-3) > 8,

+(x-3)> 8,
x-3 > 8,
x > 8+3,
X > 11.

-(x-3) > 8,
-x + 3 > 8,
-x > 8 - 3,
-x > 5,
X < -5.

Solution set: X > 11, and X < -5.

6. z=-2, 6z-5 = 6*(-2) -5 = -12-5 = 17.
z = 2, -6z = -6*2 = -12.

7. Answer incorrect.
Use same procedure as #1.

8.

9. 5x -4 = 41,
5x = 41 + 4 = 45,
X = 9.

10. Y = (1/2)x. or Y = x/2.

11. 2x + 5 > -1,
2x > -1 -5.
2x > -6,
X > -3.

Answer this Question

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