You know if something is a function or not because of the X will not be repeated. If it is, then it's not a function.
A. 0 and 2 are repeated in X
B. Nothing is repeated for X
C. 2 and 3 are repeated for X
D. 2 and 3 are repeated for X

B is your answer

8 0

3 years ago

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25% of z is 150. Find the value of z.

Nonamiya [84]

The answer is 600
25 x 4 =100
150 x 4 = 600
checking work
.25 x 600= 150

4 0

2 years ago

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17. Write the equation of a line that is perpendicular to the given line and that passes through the given point.

nataly862011 [7]

$\text{Let}\ k:y=m_1x+b_1\ \text{and}\ l:y=m_2x+b_2.\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\\text{We have the line in point-slope form:}\\\\y-y_1=m(x-x_1)\\\\m-slope\\\\y-2=\dfrac{7}{3}(x+5)\to m_1=\dfrac{7}{3}\\\\\text{therefore}\ m_2=-\dfrac{1}{\frac{7}{3}}=-\dfrac{3}{7}.\\\\\text{We have the slope}\ m=-\dfrac{3}{7}\ \text{and the point}\ (-4,\ 9).\ \text{Substitute:}\\\\y-9=-\dfrac{3}{7}(x-4))\\\\\boxed{y-9=-\dfrac{3}{7}(x+4)}$

7 0

3 years ago

A theater has 82 seats.

Tamiku [17]

Answer:

15×85

Step-by-step explanation:

15×80

1200

82×18

1476

8 0

3 years ago