AlgebraEasySum of coordinates of a simple solution
Algebra practice question
The system y = 3 and y = x has exactly one solution (a, b). What is the value of a + b?
Answer: 6
y = 3 and y = x give x = 3, so the solution is (3, 3) and a + b = 6.
Common wrong answers
- If you answered 0
- 0 subtracts instead of adding.
- If you answered 3
- 3 is a alone.
- If you answered 9
- 9 multiplies the coordinates.
More Algebra questions
- Easy
If 3x + 7 = 22, what is the value of x? - Easy
If x/4 = 9, what is the value of x? - Easy
The function f is defined by f(x) = 6x − 5. What is the value of f(3)? - Easy
The perimeter P of a rectangle with length l and width w is given by P = 2l + 2w. Which of the following expre… - Easy
Which equation defines the function f? - Easy
In the xy-plane, the graph of the equation y = 4x − 12 crosses the x-axis at the point (a, 0). What is the val…
Not affiliated with the College Board. SAT is a trademark of the College Board.