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3 years ago

For the function f(x) = 5x - 7 answer the following questions:

Mathematics

2 answers:

Elis [28]3 years ago

8 0

Answer:

See below

Step-by-step explanation:

<h3>Given function </h3>

f(x) = 5x - 7

Another notation for same function is

y = 5x - 7, where 5 is the slope and -7 is the y-intercept

<h3>Questions </h3>

1. Is the function increasing or decreasing?

Increasing as x has positive slope

2. What is the y-intercept?

y- intercept is -7

3. What is the slope?

The slope is 5

4. What is f(-2)?

f(-2) = 5(-2) - 7 = - 10 - 7 = -17

5. If f(x) = 0, what is x?

f(x) = 0
0 = 5x - 7
5x = 7
x = 7/5
x = 1.4

BaLLatris [955]3 years ago

3 0

Answer:

It is increasing x has a positive slope as seen in the graph above
y intercept is= - 7

Solving step

$f(x) = 5x - 7$

Substitute x=0

$f(0) = 5 \times 0 - 7$

Calculate the product

$f(0) = (0) - 7$

When adding or Subtracting 0 the quantity does not change

$f(0) = - 7$

G
Slope is =5 ⚄
?

$f(x) = 0$

$0 = 5x - 7$

$5x = 0$

$x = \frac{7}{5}$

$x = 1.4$

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Required

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