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The center of a circle is (2, 3) and it passes through (5, 7). The radius is:
If (x, y) is equidistant from (1, 2) and (3, 4), then:
If the line y = mx + c is tangent to the circle x^2 + y^2 = r^2, then:
The slope of a line which is equally inclined to the axes is:
Find the area of a triangle with vertices (0,0), (a,0), and (0,a).
Calculate the slope of the line segment joining (a, b) and (b, a).
If the slope of the line passing through (2, 5) and (5, y) is 2, then y is:
The perpendicular distance from (1, 1) to the line 3x + 4y - 12 = 0 is:
What is the equation of a line with slope 0 and passing through (4, 5)?
Condition for the lines y = m1x + c1 and y = m2x + c2 to be parallel is:
What is the slope of the line joining origin and (2, 4)?
If the vertices of a triangle are (0,0), (2,0), and (0,2), find its centroid.
Which of these lines is perpendicular to y = 2x + 5?
If a line makes an angle of 45 degrees with the X-axis, its slope is:
Find the length of the segment from (0,0) to the point of intersection of x + y = 4 and x - y = 0.
The points (k, 2-2k), (1-k, 2k), and (-4-k, 6-2k) are collinear if k is: