AlgebraEasyRate of change from two pairs of values
Algebra practice question
In a linear relationship between x and y, y = 4 when x = 0 and y = 10 when x = 2. By how much does y increase for each increase of 1 in x?
Answer: 3
y rises by 6 while x rises by 2, so y rises 3 for each unit of x.
Common wrong answers
- If you answered 2
- 2 is the change in x.
- If you answered 4
- 4 is the starting value of y.
- If you answered 6
- 6 is the total rise in y, not the rise per unit of x.
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.