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The binary linear equation 3x-2y = 1 is transformed into a linear function (). The intersection of the line and the X axis is () and the coordinate of the intersection of the line and the Y axis is ()
y=3/2x－1/2；(8,0)；(0,－1/2)
The coordinate of the intersection point of the image and the Y axis of the linear function y = 3x + 7 is suitable for the quadratic equation 2x + by = 18, then B =
2. For the first-order function y = (A-3) x + 2a-5 of X, the intersection of the image and the Y axis is not below the X axis, and Y decreases with the increase of X, then the value range of a is__
The coordinate of the intersection point of the image and the Y-axis of the linear function y = 3x + 7 is suitable for the quadratic equation 2x + by = 18, then B = 18 / 7
The intersection of y = 3x + 7 image and Y axis is (0,7)
Let x = 0, y = 7 generations 2x + by = 18 get 7b = 18
b=18/7
2. For the first-order function y = (A-3) x + 2a-5 of X, the intersection of the image and the Y axis is not below the X axis, and Y decreases with the increase of X, then the value range of a is__ 5《a
If ax + 3Y = 5x by is a quadratic equation with respect to X and y, then a and B satisfy the following conditions?
ax+3y=5x-by
3y+by=5x-ax
（3+b）y=（5-a）x
Meet the conditions: 3 + B ≠ 0, B ≠ - 3
5-a≠0,a≠5
If you don't understand, please ask,
Given 2A + 3B = 12, the minimum value of 2 / A + 3 / B is obtained by using basic inequality
2A + 3B = 12. 12 [(2 / a) + (3 / b)] = (2a + 3b) [(2 / a) + (3 / b)] = 13 + [(6a / b) + (6B / a)] ≥ 13 + 12 = 25
Given the inequality (a + b) x + (2a-3b) 3, then the solution of inequality (a-3b) x + (b-2a) > 0 is
（a+b)x+(2a-3b)3
So: a + B0 is:
－3bx＋b＞0
Because: - 3B > 0
So: x > 1 / 3
If inequality (a + b) x + 2a-3b-1 / 3, find the solution set of inequality (a-3b) x + b-2a > 0
(a + b) x + 2a-3b3b, (because - b > 0)
x>-3
Given (a + b) x + (2a-3b) 3. Find the solution set of inequality (a-3b) x + (b-2a) > 0
(a+b)x+(2a-3b)1/3
The - 3 power of 3
0 power of (1 / 4) * 2 power of 4
1×（1／16）＝1／16
Nonnegativity of even power: given the quadratic power of | x | + y = 0, find the value of X and y
x=0；y=0；
The a power of 3 is 4. The B power of 3 is 12. The C power of 3 is 36. What is ABC? A is equal to B, C is equal to C
ABC is an equal ratio sequence
The power a of 3 divided by the power B of 3 is 1 / 3
The B power of 3 divided by the C power of 3 is 1 / 3
So the (A / b) power of 3 is 1 / 3, so a / B is - 1
The (B / C) power of 3 equals 1 / 3, so B / C equals - 1
So ABC is an equal ratio sequence, and the ratio is - 1
RELATED INFORMATIONS
- 1. In the binary linear equation 5x-3y = 16, if x and y are opposite to each other, the solution of the equation is ()
- 2. Given that the absolute value of X + 8 and the absolute value of Y-2 / 5 are opposite to each other, what is the value of X + y
- 3. If the absolute value of a / a = - 1, then the value range of a is () A、a＜0 B、a≤0 Ca≥0 D、a＞0
- 4. If the absolute value of a minus 1 = 1 minus a, then the value range of a is
- 5. Art is beside me
- 6. Natural number solutions of bivariate linear equation 2x + 3Y = 15?
- 7. The solution of bivariate linear equation 2x + 3Y = 15 is () A. One B. two C. three D. four
- 8. A and B solve the system of equations ax + by = 2cx − 3Y = − 2, a correctly solves x = 1y = − 1, B wrongly copies C solution to x = 2Y = − 6, and find the values of a, B and C
- 9. It is known that the sum of the solutions of the binary linear equations MX + NY = 2nx + my = 4 is equal to 3, and the value of M + n is obtained
- 10. It is known that the solution of the system of equations ax + ay = 5, cx-2by = 8 is x = 5, y = - 3. A classmate misread the value of C, and the solution is x = - 3, y = 3. Try to determine the value of a, B, C
- 11. It is known that M minus 1 power of equation 4x plus 1 minus 2n power of equation 2Y is equal to 10, which is a binary linear equation about X and Y. how to find the value of M and N?
- 12. The number of columns in order is given: 2 - 48 - 1632 The sixth and seventh numbers are () The number of columns in order is given: 2 - 48 - 1632 The sixth and seventh numbers are (the nth number is（
- 13. One column number: 3,6,8,8,4,2 From the third number, each number is a digit of the product of the first two numbers One column number: 3,6,8,8,4,2 From the third number, each number is a digit of the product of the first two numbers. Then the remainder of the number in this column divided by 3 is ()
- 14. How many days are there in 2001 and 2008? How many days are there in February?
- 15. In February of this year______ Days, all year round______ Yes, in February 2008______ Day
- 16. How many days are there in February 1996? How many days are there in 1997? How many days are there in February 2008?
- 17. How many days are there before November 12, 2010 and June 7, 2011
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- 19. English translation Pay attention! Use attributive clause! As we all know, China has 9.6 million square kilometers of land and is the third largest country in the world There are 56 ethnic groups in China, of which the Han ethnic group accounts for 94% There are many big rivers in China, among which the Yangtze River and the Yellow River are the most important There was a time when China's economy lagged behind many countries in the world With the growth of economy, the days when Chinese people were discriminated are gone forever, so Chinese people are proud of it If you don't translate the computer, you will adopt it today
- 20. English translation 1. What a gorgeous mobile phone. I long for one on my birthday. When we stay in the country, we are used to swimming in the river. Cheer up, don't feel embarrassed because of low score, try hard next time. He is eager to master the method of improving his English What do you think is the way to improve your score? Now that you have passed your driving test, you can drive by yourself. Don't translate web pages. Use high school knowledge.