2.4 SPM Practice (Short Questions)


2.4 SPM Practice (Short Questions)

Question 3:
Which of the following graphs represent y = 2x3 – 16?




Solution:
y = 2x3 – 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= 3 x ?





Solution:
y= 3 x  or y=3 x 1
Highest power of the variable x is –1.
It is a reciprocal function y= a x , in this case a=3.

The answer is D.