Which function is a quadratic function?

y = –3x2 + x
y = 2x – 1
y = 3 over x
y = –|x|

Max charges $3.50 per hour when he mows lawns, plus $6.00 for transportation expenses. Which function rule represents the amount y Max charges to mow lawns for x hours?

y = 9.50x
y = 6.00x + 3.50
y = 3.50x + 6.00
y = 2.5x

Question

Which function is a quadratic function?  

y = –3x2 + x
y = 2x – 1
y = 3 over x
y = –|x|

Max charges $3.50 per hour when he mows lawns, plus $6.00 for transportation expenses. Which function rule represents the amount y Max charges to mow lawns for x hours?  

y = 9.50x
y = 6.00x + 3.50
y = 3.50x + 6.00
y = 2.5x

anonymous · Answer

the third

ranga · Answer

A quadratic function will have $\large x^2$ as the highest power.

b.r · Answer

x 2 4  6 
y 1 0 –1 

Explain how to write a function rule from the table below. Then write a function rule.