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23 votes
23 votes
Write an equation for a line that contains the point (0,4) that is parallel to the

equation below.
y= -7x+1

User Richard Clayton
by
2.7k points

2 Answers

18 votes
18 votes

Answer:

y = -7x + 4

Explanation:

Given

  • point = (0, 4)
  • parallel to y = -7x + 1

Solving

  • Slope of new line is also -7
  • y - 4 = -7(x - 0)
  • y - 4 = -7x
  • y = -7x + 4
User Gabra
by
2.5k points
12 votes
12 votes

Step 1: Find the Slope

Parallel lines have the same slope, therefore the slope of our new line is also -7.

Step 2: Find the Y-Intercept

Once we have the slope and a point on the line, we can solve for the y-intercept. Plug in the slope and the given point into slope-intercept form and solve for b.

Slope-Intercept Form: y = mx + b

Slope = -7

Point = (0, 4)

4 = -7(0) + b

b = 4

Step 3: Form the Equation of the Line

Now that we have both the slope and the y-intercept of the new line, all that's left to do is plug those values into slope-intercept form.

Slope-Intercept Form: y = mx + b

m = -7

b = 4

Equation of the New Line: y = -7x + 4

Answer: y = -7x + 4

Hope this helps!

User Tripulse
by
3.2k points