213k views
23 votes
Find the equation of the line which has gradient 4 and goes through the point (3, 7)​

User Dtorgo
by
6.5k points

1 Answer

10 votes

Answer:

  • y = 4x - 5

Explanation:

The gradient is the same term as the slope.

We have the line with the slope of 4 and passing through the point (3, 7).

Use the point - slope form and substitute the coordinates to get:

  • y - 7 = 4(x - 3)
  • y - 7 = 4x - 12
  • y = 4x - 12 + 7
  • y = 4x - 5
User Masoud Ramezani
by
7.2k points