T= 3x + 4y
Toe ons
(a) Work out the value of I when x = 5 and y=-7

Note: Consider the dependent variable is T instead of I, and we need to find the value of T when x=5 and y=-7.

Given:

To find:

The value of T when x=5 and y=-7.

Solution:

We have,

Putting x=5 and y=-7, we get

Therefore, the value of T is -13 when x=5 and y=-7.

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step-by-step explanation:

c

step-by-step explanation: