Which of the following is a linear equation in one variable? x² + 1 = 3
y² + xy + 1= 5
2y + 2 =3 +y
4

Determine domain and range, largest open interval, and intervals which function is continuous.

Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2

Triangles abd and ace are similar right triangles. witch ratio best explains why the slope of ab is the same as the slope of ac?