Solving Equations
The value of x in the equation x + 8 = 15.
What is 7?
In the equation y = mx + b, the letter m represents this feature of the line
What is the slope?
If two lines intersect at exactly one point, the system has this many solutions.
What is one solution?
A letter, such as x or y, used to represent an unknown number.
What is a variable?
A transformation that simply "slides" a figure to a new position without turning it.
What is a translation?
The value of y in the equation 4y = 36.
What is 9?
The y-intercept of the line given by the equation y = 3x - 7.
What is -7 (or the point (0, -7))?
If two lines are parallel and never touch, their system has this many solutions.
What is zero (or no solution)?
The number multiplying a variable, like the 7 in the term 7x.
What is a coefficient?
A transformation that creates a mirror image of a figure by "flipping" it across a line.
What is a reflection?
The value of $m$ in the two-step equation 2m - 5 = 15.
What is 10?
This represents the "rise over run" of a line on a coordinate plane.
What is the slope?
The coordinate pair (x, y) that satisfies the system y = x and y = 2x - 4.
What is (4, 4)?
Operations that undo each other, such as multiplication and division.
What are inverse operations?
A transformation that "turns" a figure around a fixed central point.
What is a rotation?
The value of k in the equation k/3+ 4 = 10.
What is 18?
The equation of a line with a slope of 2 and a y-intercept of 5.
What is y = 2x + 5?
The solution (x, y) to the system where x = 5 and x + y = 12.
What is (5, 7)?
A number on its own in an equation, without a variable attached to it.
What is a constant?
The only transformation that changes the size of a figure, making it larger or smaller.
What is a dilation?
The value of x when 3(x + 2) = 21.
What is 5?
A line that goes straight up and down (vertical) has this type of slope.
What is an undefined slope?
The solution to the system: x + y = 10 and x - y = 2.
What is x=6, y=4 (or the point (6, 4))?
The four regions into which the x-axis and y-axis divide the coordinate plane.
What are quadrants?
The point (3, 5) after a translation of 2 units left and 1 unit down.
What is (1, 4)?