3 years ago

The domain of f(x) is {-1,0,2}. if f(x)=3x+2, what is the range

1 answer:

Pie3 years ago

8 0

When x = -1, <span>f(x)=3(-1) +2 = -1
</span>when x = 0, f(x)=3(0) +2 = 2
when x = 2, f(x)=3(2) +2 = 8

range: {-1, 2, 8|

You might be interested in

One side of triangle is 4cm longer than the shortest side and 2cm shorter than the longest side the perimeter is 38cm what are t

o-na [289]

9.3, 13.3, 15.3
Hope it helps!

7 0

3 years ago

Read 2 more answers

If a ∝ b and a = 18 when b = 3, then find a when b = 5.

Elden [556K]

"a ∝ b" means "a is proportional to b", which in turn means there is some constant k such that

a = kb

We're given that a = 18 and b = 3, so that

18 = 3k ⇒ k = 6

Then when b = 5, we would have

a = 6 × 5 = 30

4 0

1 year ago

8xy= 2(2x + y) solve for y

STatiana [176]

Answer: $\displaystyle y= \frac{2\text{x}}{4\text{x} - 1}$

============================================

Work Shown:

$8\text{x}y= 2(2\text{x} + y)\\\\8\text{x}y= 4\text{x} + 2y\\\\8\text{x}y - 2y= 4\text{x}\\\\y(8\text{x} - 2)= 4\text{x}\\\\y= \frac{4\text{x}}{8\text{x} - 2}\\\\y= \frac{2*2\text{x}}{2(4\text{x} - 1)}\\\\y= \frac{2\text{x}}{4\text{x} - 1}\\\\$

---------------

Explanation:

The idea is to first get all the y terms to one side. I did this by subtracting 2y from both sides in the third step.

Then factor out y and divide both sides by (8x-2)

Afterward there's the optional steps of simplifying (as shown in the final two steps).

5 0

2 years ago

The side lengths of a triangle are 11.3 centimeters, 14.7 centimeters, and x centimeters. The perimeter of the

guajiro [1.7K]

The perimeter of a triangle is the sum of all its side lengths

11.3 + 14.7 + x < 44

Combine like terms

26 + x < 44

Subtract 26 from both sides.

x < 18

6 0

3 years ago

A grandmother, a mom, and 2 daughters went to the fair. they only bought 3 entry tickets and they all got in! how is this possib

fgiga [73]

The grandmother didn't have to pay

4 0

3 years ago

Read 2 more answers