A linear function is a polynomial function whose graph gives a straight line. The linear function formula is of the form

Here **x **is independent variable, **Y **is dependent variable, **m **is slope and **c **is intercept.

Suppose the equation of line passes through the points (x

Then the slope

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Given function is 3x + 5 = 0

3x + 5 = 0

3x = -5

x = $\frac{-5}{3}$ = - 1.667

Given function is 4x - 7 = 0

4x - 7 = 0

4x = 7

x = $\frac{7}{4}$ = 1.75