Given the graph of y=x2−4x+k and 4x−2y+5=0 have no intersection points in the plane rectangular coordinate system, find the minimum integral value of k.相关知识点: 试题来源: 解析 12. 4x−2y+5=0⇒y=2x+52, 若两个图象没有交点, 即方程2x+52=x2−4x+k⇒x2−6x+k...
In thexy-plane shown, the shaded region consists of all points that lie above the graph ofy=x2− 4xand below thex-axis. Does the point (a,b) (not shown) lie in the shaded region ifb< 0 ? 0 <a< 4 a2− 4a
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Structural variants (SVs) represent a major source of genetic diversity and are related to numerous agronomic traits and evolutionary events; however, their comprehensive identification and characterization in cucumber (Cucumis sativusL.) have been hindered by the lack of a high-quality pan-genome. He...
If we can not find any point for which y=0, then we will try to get a term of whole square. As for example, y=f(x)=x2-4x+7=(x-2)2+3. When x=2, then the (x-2)2=0 and hence y=3. So the point (2, 3) is acritical point. Since the co-efficient of x2is 1 whic...
Graph f(x) = -|x+1|+4. Graph: y = \frac{x^3 + 2x^2 + x}{2x^2 + x - 1} Graph y=4x+5 Graph \{x|x - 2\} = \boxed{\space} Graph 7x+y=5 Graph: y = log_2(2x + 1) Use the graph of f(x) = |x| to graph g(x) = - |2x|. ...
Find the equation of the tangent line to y=f(x) at (4,2) and use it to approximate the value of f(5). 相关知识点: 试题来源: 解析 m=4(3-2)=4\ so: y-2=4(x-4)⇒ y=4x-14f(5)≈ 4(5)-14=6 The equation of the derivative is given \left(\dfrac {\d y}{\d...
2incorrect points)A1 for correct line between -2 and 3(Use of y=mx+c)M2 line segment of 4.x-2 drawn (ignore any additionalincorrect segments)(M1 for line drawn with gradient of 4 OR line drawnwith a y intercept of -2 and a positive gradient)Al for correct line between -2 an...
A) Sketch the graph of the function y = x^3 - 3x^2 + 6. B) Indicate the transition points. Sketch the following function showing each step: f(x) = x^3 - 4x, -3 \leq x \leq 3 . Graph each of the following functions. The symbol U refers ...
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