If y=1/10 , which of the following expressions will produce a value of 15? Statement 14.7+3y 2y+14.6 15.5−5y 17−3y

1 answer:

7 0

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We shall plugin/substitute the value of y in all expressions

y = $\frac{1}{10}$

14.7 + 3 ( $\frac{1}{10}$ ) = 15
2( $\frac{1}{10}$ ) + 14.6 = 14.8
15.5 - 5( $\frac{1}{10}$ ) = 15
17 - 3( $\frac{1}{10}$ ) = 16.7

The first and third expressions will produce a value of 15

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Which equation could generate the curve in the graph below?y=3x^2-2x+1

4vir4ik [10]

If you are asking what is the graph of y = 3x^2 -2x+1.

Then, the attached file would be the answer.

To check, b^2 - 4(a)(c), for each equation and use these facts:

If b^2 - 4(a)(c) = 0, there is only one real root meaning, the graph touches the x-axis only in one point.

If b^2 - 4ac > 0, there are two real roots meaning, the graph touches the x-axis in two different points.

If b2 - 4ac < 0, there are no real roots then the graph does not touch the x-axis. This would be the case for y = 3x^2 - 2x + 1.
Solution:
(-2)^2 -4(3)(1) = 4 - 12 = -8 < 0 will result in not real roots.