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Question Number 32792 by Rio Mike last updated on 02/Apr/18

t h e e q u a t i o n

3 x - 5 = 15 r e p r e s e n t s a s t r a i g h t l i n e .

a) f i n d o n e p o i n t o n t h i s l i n e .

b) f i n d t h e c o o r d i n a t e s o f t h e p o i n t s w h e n

t h e l i n e c u t s t h e x - a x i s a n d t h e y - a x i s

c) f i n d t h e g r a d i e n t o f t h i s l i n e .

Commented by Joel578 last updated on 02/Apr/18

Did you mean 3 x - 5 = 15 + y or really 3 x - 5 = 15 ?

Commented by Rio Mike last updated on 02/Apr/18

i m e a n 3 x - 5 y = 15

Answered by Joel578 last updated on 03/Apr/18

3 x - 5 y = 15

y = \frac{3}{5} x - 3

(a) x = 10 \to y = 3

(b) Intersect with x - axis \to y = 0 \to x = 5 (5, 0)

With y - axis \to x = 0 \to y = - 3 (0, - 3)

(c) Gradient = coefficient x = \frac{3}{5}

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