Q. Is the graph of this equation a horizontal or vertical line?y=4
Equation of line: Equation of line: y=4Which value remains the same, x or y?y=4 tells us that the value of y is always 4. It represents that y remains the same.
Value remains same: Equation of line:y=4Is the line horizontal or vertical?Since y is constant in y=4, the line is parallel to the x-axis.So, the graph of y=4 is a horizontal line.
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