Find the slope and y-intercept of the line :

(i) y = 4

(ii) ax - by = 0

(iii) 3x - 4y = 5

(i) Given,

y = 4

Comparing it with y = mx + c, we get,

m = 0 and c = 4.

Hence, slope = 0 and y-intercept = 4.

(ii) Given,

⇒ ax - by = 0

⇒ by = ax

⇒ y = $\dfrac{a}{b}$x

Comparing it with y = mx + c, we get,

m = $\dfrac{a}{b}$ and c = 0.

Hence, slope = $\dfrac{a}{b}$ and y-intercept = 0.

(iii) Given,

⇒ 3x - 4y = 5

⇒ 4y = 3x - 5

⇒ y = $\dfrac{3}{4}x - \dfrac{5}{4}$

Comparing it with y = mx + c, we get,

m = $\dfrac{3}{4}$ and c = $-\dfrac{5}{4}$.

Hence, slope = $\dfrac{3}{4}$ and y-intercept = $-\dfrac{5}{4}$.