The function f is defined by f (x) = cx-3, where c is a constant. Find c, if the value of f at x=1.5 is equal to - 5.25.

The answer to your question is c = - 1.5

Step-by-step explanation:

Data

Function = f (x) = cx - 3

x = 1.5

f (x) = - 5.25

Process

Substitute

-5.25 = 1.5c - 3

Solve for c

- Add 3 units in both sides

-5.25 + 3 = 1.5c - 3 + 3

- Simplify

-2.25 = 1.5c

- Divide both sides by 1.5

-2.25/1.5 = 1.5/15 c

- Simplify and result

-1.5 = c