The slope-intercept form:
[tex]y=mx+b[/tex]
m - slope
b - y-intercept → (0, b).
We have the points (4, 7) and (0, 7) → b = 7.
Calculate the slope:
[tex]m=\dfrac{7-7}{0-4}=\dfrac{0}{-4}=0[/tex]
Therefore we have [tex]y=0x+7=7[/tex]
The standard form: [tex]Ax+By=C[/tex]
Answer: y = 7.
It's a horizontal line.
