Practice problem
The vertex of y=4x2+32x+53y=4x^2+32x+53y=4x2+32x+53 is (x1,y1)(x_1,y_1)(x1,y1). Compute x1⋅y1x_1\cdot y_1x1⋅y1.
−44-44−44
−11-11−11
−4-4−4
444444
Type a concept, like “slope” or “photosynthesis”.
