Katie started a SnapChat account last week. She started out with 3 followers and gained 2 new followers a day. Write an equation to model this situation. What is the slope (#) and what does it represent? What is the y-intercept (#) and what does it represent?

Question

Kyler Lane

Mathematics

7 March, 16:13

Katie started a SnapChat account last week. She started out with 3 followers and gained 2 new followers a day. Write an equation to model this situation. What is the slope (#) and what does it represent? What is the y-intercept (#) and what does it represent?

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Answers (2)

Know the Answer?

Isis Levine · Answer 1

Y equals 2x plus 3

The slope represents the followers gained per day.

The y-intercept represents the followers she had in the beginning

Paulina Booker · Answer 2

Total no. of followers = y

No. of days = x

Equation-

y=2x+3.

Using equation y=mx+c,

m=2 and c=3

So slope of the line is 2 which shows the no. of followers added every day.

y intercept is 3, representing the initial no. of followers.