Question

Which equations represent linear functions?

•8x – 3y = 2
•y = |x – 41-7
•y + 8 = 5(x-4)
• y=-7
•y = 6
•y=-4x* - 6

Answer 1

1,3,4,5 (2 and four I can't make out what the notations are)

Explanation:

Any equation that has a constant slope is a linear equation.

1 has a slope of 8/3

3 has a slope of 5

4 and 5 have a slope of 0

2 looks to be some form of absolute value equation and therefore is in the shape of a V and not a straight line.

6 looks to be an equation with an exponent as part of a term and will have a gradually decreasing slope (decreasing because of the negative 4)