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You can do either. Depending on how they look and how many data points you have.
Just the once because it has equal roots of 1/5
Answer this question… each input value is mapped to a single output value. Apex
It is because a function is defined as a relation which cannot be one-to-many.
1.
two at x = -2 and x = -1
Equivalently, how many points does any linear graph contain? Equivalently, how many points does any line contain? Infinity.
You plot the equation as a graph. Every one of the infinitely many points on the graph is a solution.
When points are marked on a graph, a line is often drawn across the dots plotted. A line of best fit is a straight line that goes through as many of such points as possible.
It is called a graph. Graphs consist of many such points.
You can do either. Depending on how they look and how many data points you have.
It is a line. There are many ways to graph it using intercepts etc. But, you can pick some x points, plug them in your equation, and find the corresponding y point, The graph those (x,y) values
In two dimensions, the infinitely many points with coordinates of the form (x, x-2) where x is any number.
It is the description of a slope of a line which connects from many points you mark to show a way that your graph data may increase or decrease. If it is decreasing, you have a downwards trend. If it is increasing, you have an upwards trend.
There are infinitely many ways to use graphs. Number pairs are used to define points in the Cartesian coordinate system, which is the most widely used type of graph.
The origin and infinitely many other points of the form (x, ax) where x is any real number.
A line graph is one where you plot your points then draw a smooth line through, or near, as many as possible. The line does not have to be straight. It's used to show the relationship between your two variables.