functions

Solve the following equation for x:

7x - 10 = 2x

• x = 6

• x = -2

• no solution

• x = 2

For the equation below to have no solution, which value must go in the blank:

___ + 3x = 3x + 8

• 4

• 12x

• 8

• 2x

Solve the following equation for x:

8x - 4x = 35-3

• x = -8

• x = 8

• x = 7

• x = 1

Solve for Y

2x + y = 8

• y = -2x +12

• x =2 y + 4

• x = 2y + 12

• y = -2x + 8

Solve for y:

5x + 3y= 15

• y = 5x + 16

• y = -3/5x +5

• y = -5/3x +5

• y = -5x + 15

Solve:

y = mx + b , for b

• y - mx = b

• y + mx = b

• ^y/_mx = b

• y + mx = -b

Tell whether the ordered pair is a solution to the equation.

4x+2y=4; (1,2)

• Yes

• No

Tell whether the ordered pair is a solution to the equation.

-5y+3x=-4; (2,2)

• Yes

• No

Is the following data a function?

(1,2), (2,4), (3,6), (4,8), (3,10)

Choose the best option for the answer.

• Yes; They are a function because all the coordinate points are different.

• no; because the same inputs (x) values gave different outputs (y).

• Yes; because the x-values do not repeat.

• No; because all ordered pairs are different

The x never repeats so this graph a function?

• True

• False