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ziro4ka [17]
3 years ago
8

Which graphs represent functions? A.d only B. A only C. B and d D. C and d

Mathematics
1 answer:
asambeis [7]3 years ago
6 0

Answer:

The answer is C.

Step-by-step explanation:

Graphs B and D show functions, and A and C don't.

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Someone answer this I’ll give you all my points
mote1985 [20]

Answer:

<em>Equation; y = - x + 3</em>

Step-by-step explanation:

To determine the equation, let us first determine the slope of the line, through the equation ( y2 - y1 ) / ( x2 - x1 ), in this case where y2 ⇒ 1, y1 ⇒ 5, x2 ⇒ 2, and x1 ⇒ -2;

( 1 - 5 ) / ( 2 - ( - 2 ) ) ⇒ Simplify,

( - 4 ) / ( 4 ),

<em>Slope; - 1</em>

Now that we have the slope, let us substitute this known value into the point - slope equation in the following form;

y = a * x + b, where a ⇒ slope, and b ⇒ y - intercept,

( So far we have ) y = - x + b,

Let us solve for the value of b in y = - x + b by substituting one of the points, say ( 2 , 1 ) where x ⇒ 2, and y ⇒ 1;

( 1 ) = - ( 2 ) + b,

1 = - 2 + b,

b = 3;

<em>Equation; y = - x + 3</em>

8 0
3 years ago
7:45 A.M. is the same as which of the following military times?
marissa [1.9K]
In military time it would still be 7:45 am
6 0
3 years ago
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Please help me solve 9 and 10 ASAP please
kipiarov [429]

Answer:

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2 years ago
If this is the graph of f(x) = a^(x+h) + k then
Natali [406]

Answer:

The domain is (-∞,∞) and range is (k,∞)

Step-by-step explanation:

The graph is given as a^(x+h)+k.

When x =0, we have f(x) a^h+k= y intercept

Consider the exponential function y = a^x.

This is defined for domain all real numbers and range = (0,infinity) for all positive a.

This function is transformed into our function by horizontal shift of h units to left and vertical units of k units up.

i.e. Y = y-k and X = x-h

Since x has domain as set of all real numbers X also set of real numbers

So domain is (-∞,∞)

Since range of original graph is (0,∞), we have Y minimum value as k and max as infinity.

Range = (k,∞)


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2 years ago
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Josephine solved a quadratic equation. Her work is shown below.
mariarad [96]

Answer:

Step-by-step explanation:

hello :

5(x + 7)² = 245

(x + 7)² = 49

x=0 is solution but you have other solution -14 because :(-14+7)² = (-7)² =49

here is an solution Step-by-step :

(x + 7)² = 49  means : (x + 7)² = 7²

(x + 7)² - 7²=0   use identity : a²-b² = (a-b)(a+b)

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x=0 or x+14=0

so : x=0 or x= -14

7 0
3 years ago
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