Exam 3: Graphs and Functions

Write the word or phrase that best completes each statement or answers the question. -The table shows the number of cans of soda sold at a campus stand on five days with different high temperatures for the day. Write each paired data as an order pair of the form (temperature, cans). Then create a scatter diagram of the ordered pairs. High Temperature (in degrees Fahrenheit) Number of Cans Sold 70 325 75 350 80 440 85 470 90 575

Determine whether the relation is also a function. -{(-5, -1), (-2, 6), (1, 5), (1, -3)}

Solve the problem. -Find the slope of a line perpendicular to the line $4 x - 7 y = - 6$ .

Graph the function. -

Find the slope and the y-intercept of the line. - $y = - \frac { 1 } { 4 } x$

Find the domain and the range of the relation. Also determine whether the relation is a function. -

Fill in the blank with one of the words or phrases listed below. relation line function standard parallel slope-intercept range domain point-slope perpendicular linear inequalityslope linear function -In the equation y = 4x - 2, the coefficient of x is the of its corresponding graph.

Write the word or phrase that best completes each statement or answers the question. -5x + 6y = 5; (0, 1)

Graph the linear equation. - $- 3 x + 15 y = 15$

Match the equation with its graph. - $y = 2 x + 3$

Solve. hat -A vendor has learned that, by pricing hot dogs at $\$ 1.50$ , sales will reach 85 hot dogs per day. Raising the price to $\$ 2.25$ will cause the sales to fall to 49 hot dogs per day. Let $y$ be the number of hot dogs the vendor sells at x dollars each. Write a linear equation that models the number of hot dogs sold per day when the price is $x$ dollars each.

Graph the function. -

Find the slope of the line containing the pair of points. - $\left( \frac { 1 } { 2 } , - 4 \right)$ and $\left( \frac { 1 } { 2 } , 1 \right)$

Find the domain and range. -pets at home

Graph the function. -

Find the slope and the y-intercept of the line. - $3 y - 2 x = - 6$

Graph the linear equation using the slope and y-intercept - $5 x + y = 4$

Determine whether the lines are parallel, perpendicular, or neither. - y=-5x+6 y=-x-5

Graph the linear function. -f(x) =-5x -4

Graph the linear equation. - $- 6 x + y = 0$