Quadratic Function SAT Practice (Grid-in)

Student Constructed Response ("grid-in") type


If the graph of the quadratic function f(x) = -x^2 + kx - 25 intersects the graph of y = 0 in exactly one point, what is the value of k?

Answer: 10

NOTE: This is similar to but a notch above the College Board Problem of the Day of 1-19-13






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