4 years ago

PLEASE ANSWER CORRECTLY HHH<33 Which of the following is not a function? A. y =3x - 6x + 4 B. (3,4), (6,5), (7,9),(9,15)

Mathematics

2 answers:

Arturiano [62]4 years ago

5 0

Answer:

Step-by-step explanation:

a) does not pass the vertical line test

jolli1 [7]4 years ago

4 0

A. y = 3x - 6x + 4......

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I need to find x for these

Ludmilka [50]

Answer:

1. x = 2

2. x = -2

3 x = 1

Step-by-step explanation:

Make x the subjects and work from there

3 0

3 years ago

What is the solution set for 12=2(3x - 7)^2 +4

svet-max [94.6K]

$12=2(3x-7)^2+4 \ \ \ |-4 \\
8=2(3x-7)^2 \ \ \ |\div 2 \\
4=(3x-7)^2 \\
\sqrt{4}=\sqrt{(3x-7)^2} \\
2=|3x-7| \\
3x-7=2 \ \lor \ 3x-7=-2 \\
3x=2+7 \ \lor \ 3x=-2+7 \\
3x=9 \ \lor \ 3x=5 \\
x=\frac{9}{3} \ \lor \ x=\frac{5}{3} \\
x=3 \lor \ x=1 \frac{2}{3} \\
\boxed{x \in \{1 \frac{2}{3}, 3 \} }$