A function f is defined by f(x) = 2x –5. What is the value of f(7… - Vidyadip

Question

A function f is defined by f(x) = 2x –5. What is the value of f(7)?

✓

Answer

We have, f(x) = 2x - 5
Putting x = 7
$\therefore f(7) = 2 \times 7 - 5 = 9$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "(Each question 1 marks)" from RELATIONS AND FUNCTIONS→RELATIONS AND FUNCTIONS — all question types→MATHS STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Check whether the probabilities P(A) and P(B) are consistently defined P(A) = 0.5. P(B) = 0.7, $P(A \cap B) $ = 0.6

If A = {3, 6, 9, 12, 15, 18, 21}, B = {4, 8, 12,16, 20}, C = {2, 4, 6, 8, 10, 12, 14, 16}, D = {5, 10, 15, 20}, find: A - B

Write the sum to n terms of a series whose $r^{th}$ term is $r + 2^r$

If a set contains n elements, then write the number of elements in its power set.

In a single throw of a die describe the following events: C = Getting a multiple of 3C = {3, 6}

If $\tan(\text{A+B})=\text{p}$ and $\tan\text{(A - B)}=\text{q},$ then write the value of $\tan2\text{B}.$

Both the diagonals of a rectangle have the same length.

Write the component statements of the following compound statements and check whether the compound statement is true or false: The sand heats up quickly in the sun and does not cool down fast at night.

If A = {3, 6, 9, 12, 15, 18, 21}, B = {4, 8, 12,16, 20}, C = {2, 4, 6, 8, 10, 12, 14, 16}, D = {5, 10, 15, 20}, find:D - B

Write the area of the triangle with vertices at (a, b + c), (b, c + a) and (c, a + b).