bilateral symmetry the configuration of an irregularly shaped body (such as the human body or that of higher animals) that can be divided by a longitudinal plane into halves that are mirror images of each other. radial symmetry that in which the body parts are arranged regularly around a central axis.he configuration of an irregularly shaped body (such as the body of a higher animal) that can be divided by a longitudinal plane into halves that are mirror images of each other. radial symmetry. that in which the body parts are arranged regularly around a central axis.
Linear Functions. If the power of both x and y in a relation is one, then the relation is called a linear relation or linear function. For example, y = 3x + 5, 7x  8y = 56 and 2x + 3y + 6 = 0 are linear functions because the power of both x and y is one. Plotting Graphs of Linear Functions.
Analyzing Linear and Exponential Functions. Linear. To graph a linear function, such as f(x)=2x+3, you first look at the y-intercept (3). Next, you see the slope (2x) and graph that.The line will be sloping upwards because the slope is positive, and will meet the y axis at 3, since that is the y intercept.It will look like this:Exponential. To graph an exponential function, such as f(x)=2^x, you plug in the x values and plot the points.he line will be sloping upwards because the slope is positive, and will meet the y axis at 3, since that is the y intercept. It will look like this: Exponential. To graph an exponential function, such as f(x)=2^x, you plug in the x values and plot the points.