Unit 5 Test Practice:Exponential Equations & Inequalities

Front

Solve: 7^-x = 49

Back

x = -2

Front

Which point appears to be a solution of the equations of both lines? (0, -2), (0, 4), (2, 0), (3, 1)

Back

(3, 1)

Front

Is the ordered pair (-3, 0) a solution of the system: y ≤ x + 4, y ≥ 2x - 6?

Back

Yes

Front

Graph the linear function f(x) = 3 - 4x

Back

The graph is a straight line with a y-intercept at (0, 3) and a slope of -4.

Front

Solve: 9^(8-x) = 27^(x-3)

Back

x = 5

Front

What is an exponential equation?

Back

An equation in which a variable appears in the exponent.

Front

Define exponential growth.

Back

A process where a quantity increases at a rate proportional to its current value.

Front

What is the base of an exponential function?

Back

The constant factor that is raised to a power, e.g., in 2^x, the base is 2.

Front

Explain the difference between an equation and an inequality.

Back

An equation states that two expressions are equal, while an inequality shows that one expression is greater or less than another.

Front

What does it mean for a point to be a solution of a system of equations?

Back

It means that the point satisfies all equations in the system.