Find the value of the linear polynomial if: (i) (ii) (iii)

We will substitute the given values of into the polynomial . Step 1 — Evaluate for x = 0 Let's find the value when is 0. We replace with 0 in the polynomial. > Step 2 — Evaluate for x = -1 Now, let's find the value when is -1. We replace with -1 in the polynomial. > Step 3 — Evaluate for x = 2 Finally, let's find the value when is 2. We replace with 2 in the polynomial. > Answer > (i) -3 > (ii) -8 > (iii) 7

Introduction to Linear Polynomials | Exercise 2.2

Question 1

Find the value of the linear polynomial $5x - 3$ if:

(i) $x = 0$ (ii) $x = -1$ (iii) $x = 2$

Solution

We will substitute the given values of $x$ into the polynomial $5x - 3$ .

Step 1 — Evaluate for x = 0

Let's find the value when $x$ is 0. We replace $x$ with 0 in the polynomial.

$5(0) - 3$

$= 0 - 3$

$\boxed{-3}$

Diagram 1

Step 2 — Evaluate for x = -1

Now, let's find the value when $x$ is -1. We replace $x$ with -1 in the polynomial.

$5(-1) - 3$

$= -5 - 3$

$\boxed{-8}$

Diagram 2

Step 3 — Evaluate for x = 2

Finally, let's find the value when $x$ is 2. We replace $x$ with 2 in the polynomial.

$5(2) - 3$

$= 10 - 3$

$\boxed{7}$

Diagram 3

Answer

(i) -3 (ii) -8 (iii) 7

Question 1

Answer

More questions in Exercise 2.2