In the linear function y = - 3x + 1, if the independent variable x satisfies_______ The function graph is in the first quadrant

In the linear function y = - 3x + 1, if the independent variable x satisfies_______ The function graph is in the first quadrant


0 is greater than X and less than 1 / 3
Draw a picture... Calculate the coordinates of the intersection point with the two axes
Drawing is the best way to explain the problem!
Or because it is in the first quadrant, the value of X must be greater than 0, and the value of y must be greater than 0. In order to meet the requirement of ··· first calculate that y is greater than 0, so x is less than 1 / 3, and it must be greater than 0, so we can get the answer



Practical problems and how to set the range of independent variables for quadratic function


1. The value range of the independent variable in the function relation. In the general function relation, the value range of the independent variable mainly considers the following four situations: 1. The function relation is in integral form: the value range of the independent variable is any real number; 2. The function relation is in fractional form: denominator ≠ 0; 3. The function relation contains arithmetic square root