**2.4 SPM Practice (Short Questions)**

**Question 3:**

Which of the following graphs represent

*y*= 2*x*^{3}– 16?

Solution:Solution:

*y*= 2

*x*

^{3}– 16

On the

*y*-axis,*x*= 0.*y*= 2(0)

^{3}– 16

*y*= –16

The answer is

**.***C***Question 4:**

Which of the following graphs represent
$y=-\frac{3}{x}?$

*Solution:*
$y=-\frac{3}{x}\text{or}y=-3{x}^{-1}$

Highest power of the variable

*x*is**–1**.It is a reciprocal function
$y=\frac{a}{x},\text{inthiscase}a=-3.$

The answer is

**.***D*