If ΔABC ≅ ΔEDF where the coordinates of A(0, 2), B(2, 4), and C(2, −1), what is the measure of DF?
here's what happens:
1) the graph of f = x^2 is shifted 2 units to the right.
2) the resulting graph is reflected in the x-axis, so that the parabola now opens down.
3) this final result is transformed up by 5 units.
infinite number of lines, so there is an infinite number of equations.
there are an infinite number of line that passes through the point (-2,5)
x=-2 is one line that passes through the point
y = 5 is another line that passes through the point
(these two lines are perpendicular to each other).
since the number of numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes. our only condition is that it passes through the point (-2,5)
1/800 is the right answer