Question

A line passes through the points (1,4) and (3, 4). Which is the equation of the line?

O
y=-4x+8
O y=-2x + 6
0 x = -1 &x+2
O y=2x + 2

Answer 1

None of the above.

y = 4

Explanation:

Step 1: Find slope

m = (4 - 4)/(3 - 1)

m = 0/2

m = 0

Step 2: Write out equation:

y = b

Step 3: Find b

4 = 1(0) + b

b = 4

Step 4: Rewrite equation

y = 4

You can also just figure out y = 4 by looking at the coordinates given. Any value of x will always be the same output of y, which equals 4. So your line would have to be y = 4, which has no slope.