3(x+4)
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How about: 2x = 16 meaning that x = 8
2^x = 16In general, "exponential" implies that the variable part is in the exponent. Write any equation with a power of 4, do the calculation, then replace "4" with "x".
Functions (lines, parabolas, etc.) whose graphs never intersect each other.
That would be a linear equation.
A linear equation or first-degree equation is an equation such as 3x - y = 1 in which no variable has no exponent other than 1. To solve this equation we first write the equation in slope-intercept form as y = 3x - 1 (this is the same thing as we write: f(x) = 3x - 1, because f(x) = y). Then prepare a table of values that includes three points whose coordinates satisfy the equation of the line: We give the values for x, substitute the x-values into the equation of the line to obtain the corresponding y-values. For example, for x = -1; y = 3(-1) - 1 = -4 Solution is (-1, -4), the first point for x = 0 ; y = 3(0) - 1 = -1 Solution is (0, -1), the second point for x = 1 ; y = 3(1) - 1 = 2 Solution is (1, 2), the third point Plot the three solution points in the coordinate plane, then connect these points with a straight line. If it is not possible to draw a line that contains all three points, then you made a mistake either in calculating the coordinates of at least one of the points or in plotting them