marynajera0503 marynajera0503
  • 15-06-2021
  • Advanced Placement (AP)
contestada


If a line crosses the y-axis at (0, 1) and has a slope of '4/5 , what is the equation of the line?

Respuesta :

samirakalank samirakalank
  • 15-06-2021

Answer:

[tex]y = \frac{4}{5}x + 1[/tex]

Explanation:

A line has a general equation of

[tex]y = mx + b[/tex]

where b is the y-intercept and slope of m.

Since [tex](0,1)[/tex] is the value of y when [tex]x = 0[/tex], it is the point of intersection of the line with the y-axis, hence the y-intercept is [tex]b=1[/tex].

We are given the slope is [tex]m = \frac{4}{5}[/tex]

So the equation of the line is

[tex]y = \frac{4}{5}x + 1[/tex]

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