How do i solve F (-1) = please show how its done

Answers

Answer 1

Answer: whats the equation? but when ever you see f( ), what ever is in the parenthesis just plug into x

Answer 2

Answer: f(x) = x² - 4x + 3
f(-1) = (-1)² - 4(-1) + 3
f(-1) = 1 + 4 + 3
f(-1) = 5 + 3
f(-1) = 8

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Yasmin bought several items at the discount store.She paid 8.75 percent sales tax , an amount of $4.59,on the total amount of her purchase.what was the total amount of her purchase before tax was added

Answers

Answer:

$52.5

Step-by-step explanation:

amount paid in sales tax= 4.59

salex tax= 8.75

if x is the total amount of purchase,

8.75% of x = 4.59

x = 52.5

Answer:

$52.46

Step-by-step explanation:

edge 2023

Which one of the following points lies on the
line y= 2x - 3

Answers

The required point for the given line is (0, -3). The correct option is (D).

What is a linear equation?

A linear equation in two variable has the general form as y = ax + by + c, where a, b and c are integers and a, b ≠ 0.

It can be represented as a straight line on a graph.

The equation of the given line is y = 2x - 3.

In order to find the point lying on it, consider each of the options one by one as follows,

(a) (2 , 3)

Substitute x = 2 and y = 3 in the given equation to obtain LHS and RHS as,

LHS = y

= 7

RHS = 2x - 3

= 2 × 2 - 3

= 1

Since, LHS ≠ RHS, the given point is not the solution.

(b) (-2, -1)

Substitute x = 2 and y = 3 in the given equation to obtain LHS and RHS as,

LHS = y

= 7

RHS = 2x - 3

= 2 × -1 - 3

= -6

Since, LHS ≠ RHS, the given point is not the solution.

Substitute x = 2 and y = 3 in the given equation to obtain LHS and RHS as,

LHS = y

= 4

RHS = 2x - 3

= 2 × 1 - 3

= -1

Since, LHS ≠ RHS, the given point is not the solution.

(d) (0, -3)

Substitute x = 2 and y = 3 in the given equation to obtain LHS and RHS as,

LHS = y

= -3

RHS = 2x - 3

= 2 × 0 - 3

= -3

Since, LHS = RHS, the given point is the solution.

Hence, the point (0, -3) is the solution of the given equation.

To know more about linear equation click on,

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Which of the following is a name for an isometry that moves or maps every point of the plane the same distance and direction? select all that applie flip, glide, translation, slide, rotation

Answers

Translation is the isometry that moves or maps every point of the plane the same distance and direction. There are several types of translation which include: glide and slide.

So, the type isometry that would apply are the following:
GLIDE, TRANSLATION, SLIDE

Answer:

The translation is the isometry that moves or maps every point of the plane at the same distance and direction. There are several types of translation which include: glide and slide.

So, the type of isometry that would apply is the following:

GLIDE, TRANSLATION, SLIDE

A student bought 1 box of crayons and 5 reams of paper for $54. She bought 5 boxes of crayons and 3 reams of paper $50. what is the cost of each box of crayons and each ream of paper?

Answers

lets solve it using a system of equations, c is the price of crayons and p the price of reams of paper, so we have:
1c + 5p = 54
5c + 3p = 50
those equations represent the situation. Lets solve the system multiplying the first equation by -5 and adding it to the second, we have:
-5c - 25p = -270
5c + 3p = 50
---------------------
0 - 22p = - 220
22p = 220
p = 10
and now substitute in the original equation:
1c + 5p = 54
1c + 5(10) = 54
c = 4

Help.... Pictures attached. Two Questions!