Is y=mx+b a linear function when b=0? Explain

Uma função f é dada por f (x) = ax + b, em que a e b são números reais. Se f (-1) = 3 e f (1) = - 1, determine o valor de f (3).

Does the size of parachute affect the speed and why

119,000,003 written in expanded form

If a^1/n = ^n √a What is an equivalent form of ^7 √a

You want to know the opinions of American school teachers about establishing a national test for high school graduation.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.