91影视

In the following exercises, graph the line of each equation using its slope and y-intercept.

$y=x+4$

In the following exercises, graph the line of each equation using its slope and y-intercept.

$y=-\frac{2}{3}x+1$

The equation $P=31+1.75\mathrm{w}$models the relation between the amount of Tuyet's monthly water bill payment, $P$, in dollars, and the number of units of water, $w$, used.

(a) Find Tuyet's payment for a month when $0$units of water are used.

(b) Find Tuyet's payment for a month when $12$units of water are used.

(c) Interpret the slope and $P$-intercept of the equation.

(d) Graph the equation.

Margie is planning a dinner banquet. The equation $C=750+42\mathrm{g}$models the relation between the cost in dollars, C of the banquet and the number of guests, $g$.

(a) Find the cost if the number of guests is 50 .

(b) Find the cost if the number of guests is 100 .

(c) Interpret the slope and C-intercept of the equation.

(d) Graph the equation.

Plot each point in a rectangular coordinate system and identify the quadrant in which the point is located:

鈸� $(鈭�2,1)$ 鈸� $(鈭�3,鈭�1)$ 鈸� $(4,鈭�4)$ 鈸� $(鈭�4,4)$鈸� $(-4,\frac{3}{2})$

Write the inequality shown by the shaded region in the graph with the boundary line $x鈭�4y=8$

Plot each point in a rectangular coordinate system and identify the quadrant in which the point is located: 鈸� $(鈭�4,1)$鈸� $(鈭�2,3)$鈸� $(2,鈭�5)$鈸� $(鈭�2,5)$ 鈸�$(-3,\frac{5}{2})$

Graph $y=鈭�4x$ and$y=鈭�4$ in the same rectangular coordinate system.

Plot each point: 鈸� $(鈭�5,0)$ 鈸� $(3,0)$ 鈸� $(0,0)$ 鈸� $(0,鈭�1)$ 鈸� $(0,4)$

Graph $y=4x$using the intercepts.