C。解析:For y = -4x² + 8x - 3, a = -4 and b = 8. The axis of symmetry is x = -b/2a = -8/(2*-4) = 1. Substitute x = 1 into the function, y = -4(1)² + 8(1) - 3 = -4 + 8 - 3 = 1. Since the parabola opens downward, the vertex is (1,-1...
百度试题 结果1 题目【题目】What is the vertex of the quadratic function,x^2+4x+3 .(A.(4,3)B.(2,-1C.(-2,-1D.(-4,3) 相关知识点: 试题来源: 解析 【解析】C
The vertex form of a quadratic equation is written like f (x) = a(x – h)2 + k, with the letter h and the letter k being the vertex point of the parabola.It can be used to create an equation when the vertex of the parabola is known, but other points are not. Quadratic equatio...
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Tree structure always has a special vertex/node with no incoming edges (there are only outgoing edges) called root. This is what means in certificate chains: root certificate is the most top certificate with no parent. Since, there is no parent (no signers) for a...
Opposite angles, also known as vertical angles, are formed when two lines intersect, creating pairs of angles that are equal in measure and directly across from each other at the vertex. 3 How do opposite concepts aid in understanding abstract theories? Opposite concepts help in understanding abst...
"Sinking" refers to the process of an object descending below the surface of liquid due to gravity, emphasizing displacement. "Soaking," involves immersing an object in a liquid until it absorbs the liquid or is thoroughly wetted, focusing on saturation. ...
The function to set this divisor is glVertexBindingDivisor. (emphasis mine) Which to me seems as if the answer is claiming I can divide on the number of vertices instead of the number of instances. However, when I look at glVertexBindingDivisor's documentation and compare...
Why is the vertex(−43,−2)and not(43,−2)(other than the graph, which makes it clear both thex- andy-coordinates of the vertex are negative)? Remember:in the vertex form equation,his subtracted andkis added. If you have a negativehor a negativek, you'll need to make sure th...
1. Explain what a vertex is. (Answer: A vertex is where two lines meet) 2.How many edges does a triangular prism have? (Answer: 9) 3.How many vertices does a cone have? (Answer: 1 vertex) 4. How many faces does a cuboid have? What are the 2D shapes of those faces?