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Standard VIII

Mathematics

Identifying Functions using Ordered Pairs

A function is...

Question

A function is defined from set $A$ to set $B$ :
Lucy wants to draw the function on graph, she needs coordinate points in form of ordered pair $(x, y)$ where $x \in A, y \in B$ . Here, $\frac{y}{x}$ is .

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Solution

The given mapping diagram can be represented in ordered pair as follows
$(1, - 2), (- 1, 2), (3, - 6), (5, - 10)$

Hence, we can see that $\frac{y}{x} = - 2$

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A function is defined from set A to set B : Lucy wants to draw the function on graph, she needs coordinate points in form of ordered pair (x,y) where x∈A,y∈B. Here, yx is .

The given mapping diagram can be represented in ordered pair as follows (1,−2),(−1,2),(3,−6),(5,−10) Hence, we can see that yx=−2

A function is defined from set $A$ to set $B$ :
Lucy wants to draw the function on graph, she needs coordinate points in form of ordered pair $(x, y)$ where $x \in A, y \in B$ . Here, $\frac{y}{x}$ is .

The given mapping diagram can be represented in ordered pair as follows
$(1, - 2), (- 1, 2), (3, - 6), (5, - 10)$

Hence, we can see that $\frac{y}{x} = - 2$