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3 years ago

Which graph represents the solution set of y = x2 − 4 and x + y + 2 = 0?

Mathematics

1 answer:

statuscvo [17]3 years ago

8 0

Answer:

Graph of solutions of:

y = x^2 -4 (red)

x + y + 2 = 0 (purple)

Step-by-step explanation:

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What is the sum of 2/7 + 2/5 ?<br> please help 10 points and brainlest

omeli [17]

Answer:

2/7 + 2/5=24/35

5 0

2 years ago

Given the function f(x) = 4x - 2, explain and show how to find the average rate of change between x = 2 and x = 4.

zalisa [80]

Answer:

The average rate of change between x = 2 and x = 4 is of 4.

Step-by-step explanation:

Average rate of change:

The average rate of change of a function f(x) in an interval [a,b] is given by:

$A = \frac{f(b)-f(a)}{b-a}$

In this question:

$f(x) = 4x - 2, b = 4, a = 2$

Thus:

$f(b) = f(4) = 4(4) - 2 = 16 - 2 = 14$

$f(a) = f(2) = 4(2) - 2 = 8 - 2 = 6$

Average rate of change:

$A = \frac{f(b)-f(a)}{b-a}$

$A = \frac{14-6}{4-2}$

$A = \frac{8}{2}$

$A = 4$

The average rate of change between x = 2 and x = 4 is of 4.

7 0

3 years ago

Which angle is supplementary to angle # 3?

stealth61 [152]

Check the picture below.

4 0

2 years ago

Find the distance between the points (-5, -10) and (2, 4).

Novay_Z [31]

Ok, so I used the equation Y2 (4) - Y1 (-10) over X2 (2) -X1 (-5).
4 - -10 is 14 since if a minus sign is before a negative number, it becomes positive.
Same goes for 2 - -5. It is 7 since the minus sign is before the negative number. Final answer is 14/7 which can be simpflied to 2/1 since 14 divided by 7 =2. So the distance is 14\7, or 2\1.

3 0

3 years ago

Read 2 more answers

HELP I NEED HELP ASAP<br><br> Which choice is the graph of y=(4-x)(x+2)?

tresset_1 [31]

Answer:

The answer is D.

Step-by-step explanation:

the points on the graph are, (-2,0), (0,8), (1,9) and (4,0).

4 0

3 years ago