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If the equation 3x ^ 2-10x + M = 0 has two real roots with the same sign but not equal, then the value range of M is
There are unequal real roots, i.e. △ = 10 ^ 2-4 * 3M > 0
So we get M0, so we get m > 0
The total score is 0
It is known that y + 1 is proportional to x, and when x = 2, y = 3
1) Finding the relation between Y and X
2) Translate the image of 1) so that it passes the point (2, - 1) and explain the translation process
(1)
Y+1=kx
3+1=2k
k=2
Y=2X-1
(2)
Pan to y = 2x-5
Methods: 4 units of length were translated downward
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