6.2 Practice- Representation of Functions

Write an equation that describes the function.

• y = x + 10

• y = -x + 10

• y = x + 4

• y = -x + 4

Write an equation that describes the function.

• $y=\frac{x}{2}+5$

• $y=-\frac{x}{2}-5$

• $y=\frac{x}{2}$

• $y=-\frac{x}{2}$

Write an equation that describes the function.

• y = x + 10

• y = -x + 10

• y = x - 10

• y = -x - 10

Write an equation that describes the function.

• $y=-3x$
  

• $y=3x$

• 
  

  $y=\frac{1}{3}x$

• $y=-\frac{1}{3}x$

The output is eight less than the input.

• y = x + 8

• y = x − 8

• y = 8 - x

• y = 8 + x

The output is double the input.

• $y=2x$

• $x=2y$

• $y=\frac{1}{2}x$

• $y=x+2$

The output is five times the input.

• $y=\frac{1}{5}x$

• $x=5y$

• $y=5x$

• $5=xy$

The output is two less than the input.

• $y=x-2$

• $x=y-2$

• $y=2-x$

• $x=2-y$

Find the value of y for the given value of x.

 $y=3x-4;\ x=2$  

•  $y=-1$  

•  $y=1$  

•  $y=-2$  

•  $y=2$  

Find the value of y for the given value of x.

 $y=\frac{x}{3}-1;\ x=-6$  

•  $y=-3$  

•  $y=3$  

•  $y=2$  

•  $y=-2$