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2 years ago

6

Use graphing technology to find the range of the function f(x)=-x^2+4.f(x)=−x 2 +4.

1 answer:

Andre45 [30]2 years ago

5 0

Answer:

The set of Real numbers

Step-by-step explanation:

x² + 4 is a parabola with the lowest point on the y-axis is 4 and continues up

-x² + 4 is a parabola with the highest point on the y-axis is 4 and continues down.

The range is the distance traveled on the y- axis.

All real numbers.

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3 years ago

What value of x is in the solution set of 3(x – 4) > 5x + 2?

bonufazy [111]

We have to simplify and get the value of x from this inequality given:

Given inequality,

$3(x - 4) > 5x + 2$

Now let's simplify by using distributive property,

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We need to find x, so let's isolate x to the letter side of the inequality for calculation at ease.

$3x - 12 - 5x - 2 > 0$

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Now, dividing -2 from both sides.

Note : As we are dividing a negative number from both sides, the sign of the inequality will be <u>reversed</u>.

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Now subtracting -7 from both sides,

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Or, Interval of the equal $(- \infin, -7 ]$

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3 years ago

Read 2 more answers