Sumário

Practice Test

682.

Plot each point in a rectangular coordinate system.

ⓐ $(2, 5) (2, 5)$
ⓑ $(−1, −3) (−1, −3)$
ⓒ $(0, 2) (0, 2)$
ⓓ $(−4, \frac{3}{2}) (−4, \frac{3}{2})$
ⓔ $(5, 0) (5, 0)$

683.

Which of the given ordered pairs are solutions to the equation $3 x - y = 6 3 x - y = 6$ ?

ⓐ $(3, 3) (3, 3)$
ⓑ $(2, 0) (2, 0)$
ⓒ $(4, −6) (4, −6)$

684.

Find three solutions to the linear equation $y = −2 x - 4 y = −2 x - 4$ .

685.

Find the x- and y-intercepts of the equation $4 x - 3 y = 12 4 x - 3 y = 12$ .

Find the slope of each line shown.

686.

The graph shows the x y-coordinate plane. The x- and y-axes each run from negative 7 to 7. A line passing through the points (negative 5, 2) and (0, negative 1) is plotted from the top left toward the bottom right.

687.

The graph shows the x y-coordinate plane. The x- and y-axes each run from negative 7 to 7. A vertical line passing through the point (2, 0) is plotted.

688.

The graph shows the x y-coordinate plane. The x- and y-axes each run from negative 7 to 7. A horizontal line passing through the point (0, 5) is plotted.

689.

Find the slope of the line between the points $(5, 2) (5, 2)$ and $(−1, −4) (−1, −4)$ .

690.

Graph the line with slope $\frac{1}{2} \frac{1}{2}$ containing the point $(−3, −4) (−3, −4)$ .

Graph the line for each of the following equations.

691.

$y = \frac{5}{3} x - 1 y = \frac{5}{3} x - 1$

692.

$y = − x y = − x$

693.

$x - y = 2 x - y = 2$

694.

$4 x + 2 y = −8 4 x + 2 y = −8$

695.

$y = 2 y = 2$

696.

$x = −3 x = −3$

Find the equation of each line. Write the equation in slope–intercept form.

697.

slope $- \frac{3}{4} - \frac{3}{4}$ and y-intercept $(0, −2) (0, −2)$

698.

$m = 2 m = 2$ , point $(−3, −1) (−3, −1)$

699.

containing $(10, 1) (10, 1)$ and $(6, −1) (6, −1)$

700.

parallel to the line $y = - \frac{2}{3} x - 1 y = - \frac{2}{3} x - 1$ , containing the point $(−3, 8) (−3, 8)$

701.

perpendicular to the line $y = \frac{5}{4} x + 2 y = \frac{5}{4} x + 2$ , containing the point $(−10, 3) (−10, 3)$

702.

Write the inequality shown by the graph with the boundary line $y = − x - 3 y = − x - 3$ .

The graph shows the x y-coordinate plane. The x- and y-axes each run from negative 7 to 7. The line y equals negative x minus 3 is plotted. The solid line passes through the points (negative 3, 0) and (0, negative 3).

Graph each linear inequality.

703.

$y > \frac{3}{2} x + 5 y > \frac{3}{2} x + 5$

704.

$x - y \geq −4 x - y \geq −4$

705.

$y \leq −5 x y \leq −5 x$

706.

$y < 3 y < 3$