5272道题目5525 条题源记录 · 相同内容已合并
判别式・相切与根的个数挑战
\( y=-4x^2-25 \)
\( y=qx-21 \)
In the given system of equations, q is a positive constant. The graphs of the equations in the given system intersect at exactly one point, (x, y), in the xy-plane. What is the value of x?
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判别式・相切与根的个数挑战
x2＋ 38x + c =0
In the given equation, c is a constant. The equation has no real solutions if c > n. What is the least possible value of n?
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判别式・相切与根的个数挑战
y =-4x2 -25
y = qx - 21
In the given system of equations, q is a positive constant. The graphs of the equations in the given system intersect at exactly one point, (x, y), in the xy-plane.What is the value of x ?
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判别式・相切与根的个数挑战
y =-1.5
y =x2+4x ＋ a
In the given system of equations, a is a positive integer constant. The system has no real solutions. What is the least possible value of a?
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判别式・相切与根的个数挑战
\( y=x-c \)
\( y=-4\left(x-10\right)^2 \)
The system above has at least 1 solution. What is the minimum value of \( c \)?
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判别式・相切与根的个数挑战
18x2+24x+c=0
In the given equation, c is a constant. The equation has exactly one solution. What is the value of c?
原库参考解析
判别式・相切与根的个数挑战
18x2 +24x +c = 0
In the given equation, c is a constant. The equation has exactly one solution. What is the value of c ?
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判别式・相切与根的个数挑战
Which quadratic equation has exactly one distinct real solution?
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判别式・相切与根的个数挑战
\( 2x^2+10x+15=0 \)
How many distinct real solutions does the given equation have?
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判别式・相切与根的个数挑战
\( -x^2+bx-100=0 \)
In the given equation, b is an integer. The equation has no real solutions. What is the least possible value of b?
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判别式・相切与根的个数挑战
In the equation \( 5x^2+45x+c=0 \) , c is a constant. If the equation has exactly one real solution, what is the value of c?
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判别式・相切与根的个数挑战
\( y=x-c \)
\( y=-2\left(x-11\right)^2 \)
In the given system of equations, c is a constant. The system has two distinct real solutions. Which of the following could be the value of c?
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