Examine the functions below. which statement is true?

equation 1: 4x + 5
equation 2: 4x2 + 5

equation 2 is nonlinear; equation 1 is linear.

for both functions, the value of the output increases as x increases from –1 to 1.

both functions have a constant slope of 4.

the rate of change for equation 1 is always greater than the rate of change of equation 2.

Equation 2 is non-linear, Equation 1 is linear.

Step-by-step explanation:

A linear equation is an equation with a constant gradient and can be expressed in the form y = mx + c. Hence Equation 1 Satisfies this as it is in that form and has a constant gradient of 4. Equation 2 is not in the form y =  mx + c since there is a square and hence its non-linear.

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