Posted by **y912f** on Saturday, May 1, 2010 at 4:37pm.

98. Solve the equation -49 = x - 50

x=1?

94. Determine if the following equation is a function: x=2

No?

92. Determine if the following equation is a function: y=5

No?

89. Solve for x in the equation:

6/7x - 6 = -2

I got x=28/3

86. Does the following set of coordinates make a horizontal, vertical, or diagonal line when connected with a straight line? (2,2), (5,2)

a. horizontal

b. diagonal

c. vertical

d. none of the above

A

82. True or False: A function is a relation.

This is a little confusing...

81. If f(x) = 2x + 1, then f(-2)=_____.

-3?

78. If f(x) = 3x - 5, then f(2) = _____.

1?

Write an algebraic expression for the sum of b and --

B+11

- Algebra -
**bobpursley**, Saturday, May 1, 2010 at 5:03pm
92, yes, y=5 is a function.

82, a function is a relation, but not all relations are functions.

89 I cant tell what the problem is without grouping symbols.

All others right.

- Algebra -
**y912f**, Saturday, May 1, 2010 at 5:49pm
Thank you :)

- Algebra -
**George**, Saturday, May 1, 2010 at 8:56pm
98. -49 = x - 50

add 50 to both sides

x = 1

94. no (vertical line is not a function)

92. yes (horizontal line is a function)

89. (6/7)x - 6 = -2

add 6 to both sides

= (6/7)x = 4

multiply both sides by (7/6)

= x = 28/6

86. a. horizontal

the y values are the same, so when they are connected, it makes a horizontal line

82. True, a function is a relation

81. f(-2) = 2(-2) + 1

= -4 + 1

= 3

78. f(2) = 3(2) - 5

= 6 - 5

= 1

- Algebra -
**lois**, Tuesday, November 30, 2010 at 9:15pm
5(a-5b)-3(-6a+b)

- Algebra -
**lois**, Tuesday, November 30, 2010 at 9:17pm
23a-28b

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