All categories

3 years ago

Equations and functions Am I correct? If not which one is the right answer?

Mathematics

1 answer:

NikAS [45]3 years ago

3 0

Answer:

second option is correct

Step-by-step explanation:

As we can see, the graph goes up, then stays flat for a while, and then goes up again. The only equation where this is true is the second one, where first the line goes up with the equation f(x)=4x, and then it stays still with the equation f(x) = 5, which will be a straight line, since there is no x value, and then it goes up again with f(x)=2x-1

You might be interested in

Lizzy had test scores of: 72, 94, 108, 60What is the RANGE of her test scores?

Misha Larkins [42]

Answer:

Step-by-step explanation:

To find the range, you have to subtract the biggest/largest number by the smallest number:

108 - 60 = 48

The range is 48.

5 0

2 years ago

HELP. Will give brainliest. MORE THAN ONE ANSWER FOR EACH QUESTION.

GaryK [48]

One

Slope

The general slope intercept equation for a line is

y = mx + b

If you are told outright what the slope is then you can write m = slope in this case - 3

So you have so far is y = -3x + b. Now you use the point to get the y intercept.

(2,5) means that when x = 2, y = 5. that allows you to solve for b

Y intercept

When x = 2, y = 5. Substitute that into the general equation with the slope.

5 = -3x + b Put 2 in for x

5 = -3 * 2 + b Multiply -3 * 2

5 = - 6 + b Add 6 to both sides

5 + 6 = b

11 = b

Answer

y = -3x + 11

Two

This question is a little harder. You have to find the slope.

Slope Formula

$\text{m = } \dfrac{y_2 - y_1}{x_2 - x_1}$

Givens

Points (2, -1), (-6, - 5)

y2 = -1 ; y1 = -5; x2 = 2; x1 = -6

Solve

m = (-1 - - 5)/(2 - - 6) = (-1 + 5)(2 + 6) = 4/8 = 1/2

Now find the y intercept. Use either one of the given points

(2,-1) when x = 2, y = - 1

y = 1/2 x + b Show what you have so far. Put in x = 2 for x and y = - 1 for y

-1 = 1/2(2) + b Multiply 2*1/2

-1 = 1 + b Subtract 1 from both sides.

-1 -1 = b

- 2 = b

Answer

y = (1/2)x - 2 which is D

4 0

3 years ago

a young adults burns 11 calories per minute while joggers which function shows how many calories that person will burn in x minu

Zinaida [17]

Having sex is way better at burning calories, but 11x

6 0

2 years ago

What is the area of this circle(express your answer using n)

saw5 [17]

THE ANSWER IS 36 NOT 5 BECAYUSE 5 IS BIGGER THEN 15

6 0

3 years ago

Read 2 more answers

Laurissa rolls two number cubes, each with the numbers 1 through 6. Laurissa adds the numbers that appear on the roll Which two

Usimov [2.4K]

Answer:

2 and 12;

4 and 10;

5 and 9

6 and 8

Step-by-step explanation:

Given

Roll of two number cubes

Required

Determine the sums which have equal chance

Represent the sample space of both number cubes with S1 and S2

$S_1 = \{1,2,3,4,5,6\}$

$S_2 = \{1,2,3,4,5,6\}$

Next, get the outcome of roll two number cubes

Outcome = $(1,1)(1,2)(1,3)(1,4)(1,5)(1,6)\ (2,1)(2,2)(2,3)(2,4)(2,5)(2,6)\ (3,1)(3,2)(3,3)(3,4)(3,5)(3,6)$ $(4,1)(4,2)(4,3)(4,4)(4,5)(4,6)\ (5,1)(5,2)(5,3)(5,4)(5,5)(5,6)\ (6,1)(6,2)(6,3)(6,4)(6,5)(6,6)$

Next, get the sample space; $S = \{2,3,4,5,6,7, 3,4,5,6,7,8, 4,5,6,7,8,9, 5,6,7,8,9,10, 6,7,8,9,10,11, 7,8,9,10,11,12\}$

Reorder from lowest to highest $S = \{2,3,3,4,4,4,5,5,5,5,6,6,6,6,6,7,7,7,7,7,7,8,8,8,8,8,9,9,9,9,10,10,10,11,11,12 \}$

Next, form a frequency table

Sum -- Frequency

2 ---- -- 1

3 ---- -- 2

4 ---- -- 3

5 ---- -- 4

6 ---- -- 5

7 ---- -- 6

8 ----- -- 5

9 - ------ 4

10 --- -- 3

11 --- ---- 2

12 ------ 1

From the above table, we can now determine the two sums that have equal probability;

The two sums that have equal probability have the same frequency;

Hence;

2 and 12 have the same chance of occurring

4 and 10 have the same chance of occurring

5 and 9 have the same chance of occurring

6 and 8 have the same chance of occurring

8 0

2 years ago

Read 2 more answers