IF something is linear its a line
Look at the equation for kinetic energy.It is clear that relation between mass and kinetic energy is linear (you would get a straight line on the graph), while the relation between speed and kinetic energy is quadratic (you would get a curve, specifically a parabola).
A linear function is a function whose graph is a straight line.
A linear graph looks like a line. The word "linear" has "line" in it and means "like a line"/
At constant speed, the distance/time graph is a straight line, whose slope is equal to the speed.
The straight horizontal line on the graph says: "Whatever time you look at, the speed is always the same". This is the graph of an object moving with constant speed.
The answer depends on whether it is a distance-time graph, speed-time graph or something else.
No, y=8 is a fixed value. A linear equation would look something like y=x+8 - That would produce a straight line graph if the values of x & y were plotted against each other on a graph.
If it was linear to start with it will still be linear. The slope will change to its reciprocal. The y-intercept will be unchanged (but it will look different)
The equation 2x - 3y = 6 is a linear equation and a linear equation is always has a straight line as a graph
A linear relation is a straight line. A non-linear relation is not - it mayor may not be be a curve.
To determine the trend of linear function graph or equation you would simply look at the slope of the line. This is represented by the m in the equation, f(x) = mx + b.
Any shape other than a straight line!