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Volgvan
3 years ago
7

What is the equation for the line of reflection? A) x=3 B) y=3 C) y=x D) x=6

Mathematics
1 answer:
stira [4]3 years ago
6 0

Answer:

y=x

Step-by-step explanation:

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What is the slope of the line shown below ?
ElenaW [278]

Answer:

4

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(6-(-2))/(3-1)

m=(6+2)/(2)

m=8/2

m=4

7 0
3 years ago
Help also dont mind karl
Dvinal [7]

Answer:

15/8

Step-by-step explanation:

the mixed answer is 1 7/8

but also the answer is 15/8

4 0
3 years ago
Read 2 more answers
The expressions below model different possibilities for the area of a pool. Identify which of the following expressions have at
Anna007 [38]
<h3>Answer: Choice B is correct</h3>

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

Explanation:

Use a graphing tool like GeoGebra, Desmos, or your graphing calculator to plot each expression given as a separate y equation. Four parabolas should result.

The x intercept is the same as the root or zero of a function.

You should find that only choice B has a root thats larger than 4. That specific root being x = 7.

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

A non-graphing approach:

You can use the quadratic formula or the factoring method to find the roots.

For choice A, it factors to (x+5)(x+6) = 0. The roots are x = -5 and x = -6 which aren't greater than 4. So we cross choice A off the list. Choices C and D are similar stories.

On the other hand, choice B factors to (x-7)(x+2) = 0 and it has roots of x = 7  and x = -2. This is another way to see why choice B is the answer.

Here are the steps for the quadratic formula for choice B

x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x = \frac{-(-5)\pm\sqrt{(-5)^2-4(1)(-14)}}{2(1)}\\\\x = \frac{5\pm\sqrt{81}}{2}\\\\x = \frac{5\pm9}{2}\\\\x = \frac{5+9}{2} \ \text{ or } \ x = \frac{5-9}{2}\\\\x = \frac{14}{2} \ \text{ or } \ x = \frac{-4}{2}\\\\x = 7 \ \text{ or } \ x = -2\\\\

The quadratic formula is handy in case factoring is either not possible, or guess-and-check is too lengthy of a process. As you can probably tell, we could use the quadratic formula's results to help construct the factored form.

8 0
3 years ago
Plzzz help me asap plzzz someone <br> the question is on the picture
Roman55 [17]

Answer:

(3 , 2.5)

Step-by-step explanation:

.5x + y = 4

y = .5x+1


.5x + (.5x + 1) = 4

x + 1 = 4

x = 3


y = .5(3)+1

y = 1.5 + 1

y = 2.5



7 0
3 years ago
Write the equation of the line shown in the graph above in slope-intercept form
qwelly [4]
Y = mx + c
y= -2/3x + 1
1= c
4 0
3 years ago
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