3 years ago

Given f (x) = 2 x + 9 f (x) = 15 x=

Mathematics

1 answer:

Elina [12.6K]3 years ago

6 0

Answer:

Step-by-step explanation:

15 minus 9 equals 6. 6 divided by 2 equals 3.

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Determine the range of the function.

Naya [18.7K]

Answer:

$Solution: f(x)\ge-5\\Interval:[-5,\infty)$

Step-by-step explanation:

Equation: $\frac{1}{4} x^2-5 = y$

1). $\frac{1}{4} x^2-5 = y$ → $\frac{x^2}{4}-5=y$

2). $\frac{x^2}{4}-5=y$ ∴ $a=\frac{1}{4}, b=0, c=-5$

3). $x_v=-\frac{b}{2a}$

$=-\frac{0}{2(\frac{1}{4})}$

$=0$

4). now plug $x_v$ into $y_v$

$y_v=\frac{0^2}{4}-5$

$=-5$

5). Minimum (0,-5) ∴ $f(x)\ge-5$

4 0

4 years ago

5. What is the slope of the line that passes through (-2, 4) and (7, 1)?

just olya [345]

Answer:

Slope: $-\frac{1}{3}$

Step-by-step explanation:

Step 1: Use slope formula to find the slope

$m = \frac{y2 - y1}{x2- x1}=\frac{4-1}{-2-7}=\frac{3}{-9} =-\frac{1}{3}$

Therefore the slope of a line that passes through (-2, 4) and (7, 1) is $-\frac{1}{3}$

4 0

4 years ago

PLZZZZZZ HELP I DON'T WANNA GET IT WRONG

prohojiy [21]

Answer:

She will save $5.25

Step-by-step explanation:

21 x 25% = 5.25

3 0

3 years ago

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Find the value of a answers: a:15 b:14 c:19 d:16

Paul [167]

Answer:

6a+10= 3a+55

6a-3a= 55-10

3a= 45

a= 45/3

a= 15

The answer is (A) 15

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3 years ago

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andriy [413]

Answer:

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6 0

4 years ago