X^2 - 4 x = -2
Add 4 to both sides:
x^2 - 4 x + 4 = 2
Write the left-hand side as a square:
(x - 2)^2 = 2
Take the square root of both sides:
x - 2 = sqrt(2) or x - 2 = -sqrt(2)
Add 2 to both sides:
x = 2 + sqrt(2) or x - 2 = -sqrt(2)
Add 2 to both sides:
Answer: x = 2 + sqrt(2) or x = 2 - sqrt(2)
Answer:
R(1.6, 0)
Step-by-step explanation:
Use the formula, 
to find the coordinates of point R, that partition the lie segment AB into the ratio 1/5.
Let,
Thus, plug in the values as follows:
The coordinates of point R, are (1.6, 0)
Answer:
- d. the x–coordinate of the intersection point
Step-by-step explanation:
The solution of the system with two lines is the x-coordinate of their intersection point.
a. there is only a solution if the lines are identical
- No, it gives infinitely many solutions.
b. both the x–coordinate and the y–coordinate of the intersection point,
- No, only the x-coordinate is considered
c. the y–coordinate of the intersection point
- No, only the x-coordinate is considered
d. the x–coordinate of the intersection point
Different equations can result in identical graphs. For example, −=0
y−x=0
and (−)(2+2)=0
(y−x)(x2+y2)=0
both have the same graph on the real xy-plane, a diagonal line through the origin. The first equation is a linear equation while the second is a cubic equation.
Step-by-step explanation:
