Q. 12 A5.0( 2 Votes )

# Let f and g be real functions defined by f (x) = 2x + 1 and g (x) = 4x – 7.For what real numbers x, f (x) = g (x)?

Given: f and g be real functions defined by f(x) = 2x + 1 and g(x) = 4x-7

To find: For what real numbers x, f (x) = g (x)

Explanation: to satisfy the condition f(x) = g(x), the given real functions should be equal

i.e., 2x + 1 = 4x-7

7 + 1 = 4x-2x

8 = 2x

Or, 2x = 8

x = 4

Hence for x = 4, f (x) = g (x)

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos  Let's Play the Game of Inequalities52 mins  Questions Discussion of BiomoleculesFREE Class  Introduction To Cell Division60 mins  Cell - The unit of Life - 0268 mins  Cell - The unit of Life - 0361 mins  Cell - The unit of Life - 0155 mins  Cell - The unit of Life - 0452 mins  Cell - The unit of Life - 0561 mins  Cell - The unit of Life - 1056 mins  Interactive Quiz | Cell the unit of life43 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation view all courses 