EDGE Math 8

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Result

Choose the correct answer to each question.

1.	What is the equation of the horizontal line that passes through the point $(\frac{7}{3}, - \frac{1}{9}) ?$

3 x - 7 = 0

3 y - 7 = 0

9 x + 1 = 0

9 y + 1 = 0

Answer: $9 y + 1 = 0$

2.	A line containing the origin has a slope of $- \frac{3}{4} .$ Which of the following points is not on the line?

(0, 0)

(- 1, \frac{3}{4})

(- 3, 4)

(4, - 3)

Answer: $(- 3, 4)$

3.	What is the slope of the line with equation $6 x - 9 y - 72 = 0 ?$

−8

8

- \frac{2}{3}

\frac{2}{3}

Answer: $\frac{2}{3}$

4.	What is the equation of the line with 4 as x-intercept and that contains the point $(- 1, 9) ?$

5 x + y - 4 = 0

5 x - y - 4 = 0

9 x + 5 y - 36 = 0

9 x - 5 y - 36 = 0

Answer: $9 x + 5 y - 36 = 0$

5.	What is the slope of the line whose x- and y-intercepts are both equal to a nonzero real number a?

−1

1

a

- \frac{1}{a}

Answer: −1

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