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3 years ago

Based on the graph below, what is f(-1)? 4 0 1 -4

Mathematics

2 answers:

Elanso [62]3 years ago

7 0

Answer:

-4

Step-by-step explanation:

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yKpoI14uk [10]3 years ago

6 0

Answer:

-4

Step-by-step explanation:

The term f(-1) means function of -1. f(x) means the same thing as y. To find f(x) given a linear graph, just put your finger on x=-1, and trace your finger up or down until you reach the line. See what y-value it has (count the boxes from the origin).

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The sum of the digits of a two digit number is eight the digits are reversed the number increases by 18 find the original number

pochemuha

Answer:

The two digit number is 35.

Step-by-step explanation:

Let xy be the two digit number

According to given statement

$x+y = 8\ \ \ \ Eqn\ 1$

The place value of xy is 10x+y

Reversing the number will be: 10y+x

It is also mentioned that the new number is previous number increase by 18

So,

$10y+x = 10x+y+18\\10y-y+x-10x = 18\\9y-9x = 18\\9(y-x) = 18\\\frac{9(y-x)}{9} = \frac{18}{9}\\y-x = 2\ \ \ Eqn\ 2$

From equation 2

$y = 2+x$

Putting in equation 1

$x+y = 8\\x+2+x = 8\\2x+2 = 8\\2x = 8-2\\2x = 6\\\frac{2x}{2} = \frac{6}{2}\\x = 3$

Putting x = 3 in equation 1

$3+y = 8\\y = 8-3 = 5$

xy = 35

Hence,

The two digit number is 35.

7 0

3 years ago

17.What is the algebraic expression for ‘ x less than two times a number y.’ a) 2y – x b) x – 2y c) 2x – y d) none of these

hichkok12 [17]

The answer will be option a) 2y - x.

Let us take the number as y.

Twice the number will be 2y

Now if we subtract x from it, then the algebraic expression stands like this :

2y - x.

So answer will be option a.

8 0

3 years ago

A pizza parlor sells a basic cheese pizza and there is a charge to add additional toppings. To determine the base price of a piz

ale4655 [162]

The correct answer for this question is B

Rate of change: a rate that describes one quantity and the changes in relation to another quantity.

Hope this helps :)

3 0

4 years ago

The table shows the colors of Ms. Beal’s pens and how many of each she has.

ale4655 [162]

Answer:

2:1

Step-by-step explanation:

12 divided by 6 = 2

6 divided by 6 = 1

2:1

7 0

3 years ago

What is a1 of the arithmetic sequence for which a3=126 and a64= 3,725

Dominik [7]

If the third term of the aritmetic sequence is 126 and sixty fourth term is 3725 then the first term is 8.

Given the third term of the aritmetic sequence is 126 and sixty fourth term is 3725.

We are required to find the first term of the arithmetic sequence.

Arithmetic sequence is a series in which all the terms have equal difference.

Nth term of an AP=a+(n-1)d

$A_{3}$ =a+(3-1)d

126=a+2d--------1

$A_{64}$ =a+(64-1)d

3725=a+63d------2

Subtract second equation from first equation.

a+2d-a-63d=126-3725

-61d=-3599

d=59

Put the value of d in 1 to get the value of a.

a+2d=126

a+2*59=126

a+118=126

a=126-118

a=8

$A_{1}$ =a+(1-1)d

=8+0*59

Hence if the third term of the arithmetic sequence is 126 and sixty fourth term is 3725 then the first term is 8.

Learn more about arithmetic progression at brainly.com/question/6561461

#SPJ1

3 0

2 years ago