How do you find the x and y intercept of #y = 7x + 3#?

1 Answer
EZ as pi
Jul 14, 2016

Intercepts are: #x = -3/7 and y = 3#

Explanation:

As long as an equation of a straight line is in the form #y = mx +c#, the y-intercept is obtained immediately from 'c'.

To find the y-intercept, make #x = 0#
To find the x-intercept, make #y=0#

If #x=0:" " y = 7(0) +3 " "rArr y = 3#

If #y =0:" " 0 = 7x+3#
#" "7x = -3 " "rArr x = -3/7#

Related questions
See all questions in Intercepts by Substitution
Impact of this question
2858 views around the world
You can reuse this answer
Creative Commons License