All are correct except these 2:
The graph has one x-intercept:
No, the graph does not cut at the x-axis at all, there is no x-intercept.
The graph as a y-intercept at (5,0):
No, the y-intercept is at (0,5)
Answer:
x = approx. 1.24 or -7.24
Step-by-step explanation:
It's hard to factor directly so we should use the quadratic formula or complete the square. I'm going to go with completing the square.
x²+6x-9=0
x²+6x=9
x²+6x is the same as x²+2·3·x, in order to make this into the algebraic identity (A+B)²=A²+2AB+B², we must add B², or in this case 3² to both sides. (A is x, B is 3)
x²+6x+9=18
(x+3)²= 18
x+3= ±√18
x= ±4.24 -3 (approximately 4.24)
First solution for x = 4.24-3 = 1.24
Second solution for x = -4.24-3 = -7.24
Answer:
y=3x-2
Step-by-step explanation:
y = 3x+ 2 ; y= 3x - 2 is a system of equations with no solution.
Vertical angles are equal to each other, so:
Answer:
(4xy)(5x^2yz) = 20x^3y^2z
Step-by-step explanation:
- You need to expand the brackets by multiplying compatible terms together.
- The numerical ones together and algebraic ones of the same variable together as well.
- You may follow the following steps to understand the way it is done.