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Eduardwww [97]
4 years ago
8

Find the range of the function f(x) = 4x - 7,

Mathematics
1 answer:
ratelena [41]4 years ago
8 0

Answer:

(- 19, - 11, 5, 25)

Step-by-step explanation:

The given function is f(x) = 4x - 7

Now, we have to find the range of the given function for the given domains.

The domains are given as (2 - 5, - 1, 3, 8) i.e. (- 3, - 1, 3, 8).

Therefore, f(- 3) = 4(- 3) - 7 = - 19

f(- 1) = 4(- 1) - 7 = - 11

f(3) = 4(3) - 7 = 5

f(8) = 4(8) - 7 = 25

So, the ranges of the function are (- 19, - 11, 5, 25) (Answer)

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Look at this graph:
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<h2>Answer:</h2>

The Slope is \frac{2}{3}\\

<h2>Explanation:</h2>

Notice that both the points, (0,20) and (20,50), are on the line. So we can use those points to calculate the slope. Recall that that slope of the line m can be calculated by \frac{y_2 -y_1}{x_2 -x_1}\\ if we have the points, (x_1,y_1) and (x_2,y_2).

<h3>Calculating for the slope of the line:</h3>

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m = \frac{50 -20}{20 -0} \\ m = \frac{30}{20} \\ m = \frac{2}{3}

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Read 2 more answers
Xsquared minus 10x plus 26 equals 8
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Okay so question is

x^2-10x + 26 = 8

Lets simplify it

x^2-10x+18=0

Let's solve your equation step-by-step.<span><span><span><span>x2</span>−<span>10x</span></span>+18</span>=0

</span>Step 1: Use quadratic formula with a=1, b=-10, c=18.<span>x=<span><span><span>−b</span>±<span>√<span><span>b2</span>−<span><span>4a</span>c</span></span></span></span><span>2a

</span></span></span><span>x=<span><span><span>−<span>(<span>−10</span>)</span></span>±<span>√<span><span><span>(<span>−10</span>)</span>2</span>−<span><span>4<span>(1)</span></span><span>(18)</span></span></span></span></span><span>2<span>(1)

</span></span></span></span><span>x=<span><span>10±<span>√28</span></span>2

</span></span><span><span>x=<span>5+<span><span><span>√7</span><span> or </span></span>x</span></span></span>=<span>5−<span>√7

</span></span></span>Answer 

<span><span>x=<span>5+<span><span><span>√7</span><span> or </span></span>x</span></span></span>=<span>5−<span>√7</span></span></span>
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