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borishaifa [10]
3 years ago
8

Graphing functions - Alg2: Can someone please explain how to get from -x{2} + 4x - 1 to y? I'm having trouble figuring out how t

o get to y. Thank you.

Mathematics
1 answer:
UkoKoshka [18]3 years ago
6 0
You need to graph it. that is how you find y
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Line (5,-4), slope -4 <br><br> Y-intercept =
user100 [1]

Answer:-2.75

Step-by-step explanation: y+4=-4(x-5) y+4=-4x+5/4 y=-4x-2.75

4 0
3 years ago
Find the perimeter of the figure shown above. a. 18 yds c. 20 yds b. 10 yds d. 24 yds Please select the best answer from the cho
ycow [4]
<h3>Answer: 24 yards, choice D</h3>

There are 4 sides to this figure (trapezoid). The left slanted side and the right most vertical side, combined with the top and bottom horizontal sides, will get us the perimeter.

left slanted side = 5 yards

right most vertical side = 4 yards (see note below)

bottom side = 9 yards

top side = 6 yards

Add up the four sides mentioned: 5+4+9+6 = 9+15 = 24

note: the rectangle has opposite sides that are the same length. While the right most side isn't labeled, it is the same length as the left side of the rectangle, so both are 4 yards long.

Another thing I should probably mention is that we do not add in the interior 4 yard side. The perimeter is only the outer or exterior sides we care about. Think of it like we're trying to fence around some property lot and we don't want to subdivide the property up. Finding the perimeter will help us find the amount of fencing needed to surround the property.

4 0
3 years ago
Write the following in algabraic expression: the sum of the number a and three times the square of the number b
ycow [4]

Answer:

a+3b^2

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Tell whether each graph is a function and justify your answer. Which graph is not a good representation of a​ real-world situati
mina [271]

Using the function concept, it is found that:

  • Graph B is a function because each value of x corresponds to exactly one y-value.

In a function, <u>one value of the input can be related to only one value of the output</u>.

  • In a graph, it means that for each value of x(horizontal axis), there can be only one respective value of y(vertical axis).

In this problem, at Graph A, when x = 5, for example a vertical line crosses the function 3 times, hence there are 3 respective values of y for x = 5, and the same is valid for other values of x, hence it is not a function.

At Graph B, <u>for each value of x, there is only one value of y</u>, hence it is a function.

Hence:

Graph B is a function because each value of x corresponds to exactly one y-value.

To learn more about the function concept, you can take a look at brainly.com/question/12463448

5 0
2 years ago
Select the correct answer from each drop-down menu.Complete the following proof.Given: WXYZ is a parallelogram with diagonals XZ
ohaa [14]

GIVEN:

We are given a parallelogram WXYZ with diagonals WY and XZ.

Required;

Prove that XZ bisects WY.

Explanation;

From the diagram provided, we can draw the following conclusion;

\begin{gathered} \angle WXY\cong\angle YZW \\  \\ \angle WXZ\cong\angle YZX \\  \\ Alternate\text{ }interior\text{ }angles \end{gathered}

Also, we have;

\begin{gathered} \Delta WZV\cong\Delta YXV \\  \\ SAS\text{ }congruency\text{ }criteria \end{gathered}

8 0
1 year ago
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