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evablogger [386]
3 years ago
12

Y=4(3x-1)(5x-1) what is equal to y?

Mathematics
1 answer:
Klio2033 [76]3 years ago
8 0

Answer:

Y=60x^(2)-32x+4

Step-by-step explanation:

Y=4(3x-1)(5x-1)

=(12x-4)(5x-1)

=60x^(2)-12x-20x+4

<u>Y=60x^(2)-32x+4</u>

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4 years ago
6 points
kodGreya [7K]

Answer:

y=-2\,(x+3)^2-3

Step-by-step explanation:

Notice that they are asking you to write the equation of the parabola in vertex form, that is using the coordinates of the vertex (x_v,y_v) in the expression:

y-y_v=a\,(x-x_v)^2\\y=a\,(x-x_v)^2+y_v

we can start by directly replacing the given vertex coordinates (-3, -3) in the expression, and then using the extra info on the point the parabola goes through in order to find the parameter a:

y=a\,(x-x_v)^2+y_v\\y=a\,(x+3)^2+(-3)\\y=a\,(x+3)^2-3\\-5=a\,(-2+3)^2-3\\-5=a\,(1)-3\\a=-5+3\\a=-2

So, now we can write the full expression for the parabola:

y=a\,(x+3)^2-3\\y=-2\,(x+3)^2-3

8 0
3 years ago
Multiply the following binomials:<br> (x + 10)(x - 5)
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X^2+5x-50

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