4. positive. 5.zero. 6.undefined. 7. negative
7 (x-3) + 3(4-x) = -8
7x - 21 + 11 - 3x = -8
4x -10 = -8
4x = -18
X = -18/4
X = -4.5
5.58 + 9 = 14.58
5.04 + 6 = 11.04
Answer:
The answer is below
Step-by-step explanation:
The question is not complete but I would show how this charges can be represented by an equation.
For health club A:
The graph (x, y) passes through the points (2, $136) and (4, $242). Let x represent the total months and y represent the total charges. The equation is given by:
For health club B:
The table (x, y) has the points (4, 173) and (6, 23y). Let x represent the total months and y represent the total costs. The equation is given by:
From here:
http://jwilson.coe.uga.edu/EMAT6680/Masson/6690/Instructional_Unit_plan/Week1/week1_day3.html