# Chapter 3: Linear Functions

Q1.

Horatio is purchasing a computer cable for $15.49. If the sales tax rate in his state is 5.25%, what is the total cost of the purchase?

A. $16.42

B. $16.30

C. $15.73

D. $15.62

Q1.

The equation to convert Celsius temperature *C* to Kelvin *K* is shown.

- State the independent and dependent variables. Explain.
- Determine the
*C*- and*K*-intercepts mean in this situation.

Q1.

Graph each ordered pair on a coordinate grid.

$(-3,3)$

Q1.

Determine whether each equation is a linear equation. Write yes or no. If yes, write the equation in standard form.

$y=-4x+3$

Q1.

State whether each sentence is *true* or *false*. If *false* replace the underlined word or number to make a true sentence.

The *x*-coordinate of the point at which the graph of an equation crosses the *x*-axis is an *x*-intercept.

Q10.

State whether each sentence is true or false. If false, replace the underlined word or number to make a true sentence.

In the linear equation$4x+3y=12$,the constant term is __12__.

Q10.

Find the slope of the line that passes through each pair of points.

$\left(5,8\right),\left(-3,7\right)$

Q10.

Write the ordered pair for point *D*.

Q10.

Find the root of each of each equation.

$4x-24=0$

Q11.

Write the ordered pair for point *F*.