52,259 views
25 votes
25 votes
Graph the line passing through (-1, 4) whose slope is m = 4

User Fqdn
by
2.6k points

2 Answers

14 votes
14 votes

Answer:

y = 4x + 8

Explanation:

y = mx + b

4 = 4(-1) + b

4 = -4 + b

(isolate variable)

4 + 4 = b

b = 8

...

y = 4x + 8

User Reza Dehnavi
by
3.2k points
24 votes
24 votes

Answer:

y = 4x + 8

Graph Attatched

Explanation:

Hello!

Slope-Intercept Form:
y = mx + b

  • y = output
  • m = slope
  • x = input
  • b = y-intercept

m and b are replaced with numbers.

Given that the Slope is 4, and the point is (-1, 4), we can find the y-intercept using this equation:

  • 4 = 4(-1) + b

Solve for b

  • 4 = -1(4) + b
  • 4 = -4 + b
  • 8 = b

The y-intercept is 8, so our equation would be y = 4x + 8.

Graph:

  • Plot the y-intercept
  • Go up 4 units and to the right 1 (Slope is Rise/Run: 4/1)
  • Plot that Point
  • Draw a line between them

As you can see, point (-1,4) passes through the line with a slope of 4.

Graph the line passing through (-1, 4) whose slope is m = 4-example-1
User Berrada
by
2.3k points