Which of the following is the equation of a line that makes a 45-degree angle with the x-axis and has a y-intercept of 2?

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Uniteasy Admin · Accepted Answer

The function for a line looks line $$y = kx+b$$, inwhich k is the slope of the line and b is the y-intersect.
To  make a 45-degree angle with the x-axis, the line must have a slope of 1, so $$k = 1$$
When $$x=0$$,we get  y-intersect, that is 
$$y_{intersect} = b = 2$$
So the line function is $$y=x+2$$
A is the choice

Multiple Choice Question (MCQ)

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