2 years ago

Please Help Fast Algebra 1

Mathematics

2 answers:

Ostrovityanka [42]2 years ago

4 0

Answer:

it's answer is C. 1

Step-by-step explanation:

Given

f(x) = -2x + 7

f(3) = - 2 * 3 + 7

= - 6 + 7

= 1

Kruka [31]2 years ago

3 0

The answer is C(1). You plug in 3 for x and solve

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Identify the domain of the function shown in the graph.

ivanzaharov [21]

For this case, we find the equation of the line, for this we look for points where the line passes:

$(x1, y1) = (- 2,0)\\(x2, y2) = (- 10, -4)$

We found the slope:

$m = \frac {y2-y1} {x2-x1} = \frac {-4-0} {- 10 - (- 2)} = \frac {-4} {- 10 + 2} = \frac {- 4} {- 8} = \frac {1} {2}$

Thus, the equation of the line is:

$y = \frac {1} {2} x + b$

We substitute a point to find "b":

$0 = \frac {1} {2} (- 2) + b\\0 = -1 + b\\b = 1$

Finally:

$y = \frac {1} {2} x + 1$

Now, the domain is given by all the values for which the function is defined.

It is observed that "x" can take any value, that is, it is defined for all real numbers.

Answer:

Option A

4 0

2 years ago

Please i need help !!!

In-s [12.5K]

Answer:

Jenna is correct.

Step-by-step explanation:

See attached image.

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1 year ago

If 3x + 7 = 19, find the value of 4x + 1.<br> 4x + 1 =

Mkey [24]

X=4
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2 years ago

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vladimir1956 [14]

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2 years ago