Which of the following is the equation of a line that passes through the point (1,4) and is parallel to the x-axis?

A. y = 4
B. x = 1
C. y = 1
D. x = 4

Question

Which of the following is the equation of a line that passes through the point (1,4) and is parallel to the x-axis?

A. y = 4
B. x = 1
C. y = 1
D. x = 4

shamil98 · Answer

Parallel lines have equal slopes.  We assume the slope is zero for now.  To find the y - intercept. Plug in the y value .
4 = 0(1) + b
4= b
so the equation is 
y  = 0x + 4
or y = 4

shamil98 · Answer

The slope of the x-axis is zero forgot to mention that.

anonymous · Answer

oh okay that makes sense! so the answer is y=4?

shamil98 · Answer

Yes.

anonymous · Answer

so every time its an ordered pair asking that kind of question the slope is automatically 0 unless it says otherwise

shamil98 · Answer

No, it says parallel to the x-axis, parallel line have equal slopes, the slope of the x axis is 0, i made a mistake earlier in saying that.

anonymous · Answer

oh okay :)