Additional Mathematics 0606 / Straight-line graphs / 3.643.64: Value of aaa for a tangent line to a curve0606/21/O/N/23 — Question 6 · 6 marksMark as done · Save for later · Show all solutionsFind the value of the constant aaa for which the line y=(2a+1)x−10y = (2a + 1)x - 10y=(2a+1)x−10 is a tangent to the curve y=ax2−5x+2y = ax^{2} - 5x + 2y=ax2−5x+2.[6]▸ Answer▸ Official mark scheme← 3.61: Linear law: ln(y+2)\ln(y+2)ln(y+2) against x2x^{2}x23.66: Intersection of two lines; distance from origin →
