Monica was given the following problem to solve but got it wrong. a) Identify her error b) Solve the problem yourself and find the correct solution. 2X - Y = 4 X = 4 - Y

Q: Solve - 2x- 18 > 0. Represent the -2x - 1 | solution on a number line. -2x -11

A: This is a number line problem

Q: solve in echelon form and tell how many solutions there are in non negative integers. x+2y+3z=90…

A: Given equations x+2y+3z=90  0x +3y+4z=36

Q: How many non-negative integer solutions are possible of the following equation?

A:

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.