Question

Can some one answer these two questions based on the sentence below:
Line P passes through the point (-1,-4) and has a slope of 7.

Questions

1. What is the Y-Intercept of Line P?
2.Write the equation of Line P

Answer 1

Answer:

y intercept = 3

Equation: y = 7x + 3

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Step-by-step explanation:

y=mx+b

where

m = slope

b= y intercept

and x,y = coordinates

x = -1

y= -4

m= 7

we need to slove for y intercept

y = mx + b

b = y-mx

b = -4-7(-1)

b = -4 + 7

b = 3

Well y intercept = 3

So equation is: y = 7x+3

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