1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
JulijaS [17]
2 years ago
15

Given the definitions of f(x) and g(x) below, find the value of g(f(-1)).

Mathematics
1 answer:
Reptile [31]2 years ago
5 0

Answer:

-14

Step-by-step explanation:

f(x) = -4x – 7 \\ plug \: x =  - 1 \\ f( - 1) =  - 4( - 1) - 7 = 4 - 7 =  - 3 \\g(x) = x² + 7x – 2 \\g(f( - 1)) =  {( - 3)}^{2}  + 7( - 3) - 2 \\  = 9 - 21 - 2 \\= - 14

You might be interested in
Help me please i dont understand
ELEN [110]

Answer:

6/5 or 1.2, they're the same value

Step-by-step explanation:

When it says "rate of change", it's really just asking for the slope. If you don't know what the slope is, essentially how much the y-value increases by whenever x increases by 1. This can be formally defined using the equation: \frac{y_2-y_1}{x_2-x_1} which is essentially \frac{rise}{run}. The subtraction is finding the difference between the two numbers to see how much it's changed by. Btw the order doesn't matter, I could plug in (-3, -2) as (x2, y2) or I could plug it in as (x1, y1) as long as I make sure to input it in correctly. In this example I'll just say (-3, -2) = (x1, y1) and (2, 4) = (x2, y2). Plugging these values into the equation gives you: \frac{4- (-2)}{2- (-3)} = \frac{6}{5} that's the rate of change

8 0
2 years ago
Please help me answer this i need asap
damaskus [11]

Answer:24 xexponet 3 − 5

Step-by-step explanation:

4 0
3 years ago
An artist has completed 1/4<br> of a penting in 2 weeks. At what rate is she working?
Mrac [35]

Answer:

1/8

Step-by-step explanation:

1/4 ÷ 2 = 0.125

0.125 as a decimal is 1/8

5 0
2 years ago
Helppppppppppppppppppppp asap
grandymaker [24]
The answer should be 2x-5
4 0
2 years ago
Read 2 more answers
Find the equation of a line parallel to 2x-2y=-4 that passes through the<br> point (3,9).
erastovalidia [21]

The line which is parallel to 2x-2y=-4 that passes through the

point (3,9) is x-y = -6.

Given that, 2x-2y = -4 passes through the point (3,9) then we have to find the equation of a line which is parallel to the given equation of line.

Let's proceed to find the equation of the line.

The slope intercept form of a straight line is one of the most common forms used to represent the equation of a line. The slope intercept formula can be used to find the equation of a line when given the slope of the straight line and the y-intercept( the y-coordinate of the point where the line intersects the y-axis).

Using the slope-intercept formula, the equation of the line is:

y = mx + b

where,

m = the slope of the line

b = y-intercept of the line

(x, y) represent every point on the line

x and y have to be kept as the variables while applying the above formula.

2x-2y = -4

-2y = -4-2x

y = -4/-2 - 2x/-2

y = 2+x

y = x+2

On comparing with y = mx+b

m = 1 and b = 2

As the lines are parallel then the slope of other line will also be same i.e., m = 1

The point from which it is passes is (3,9)

⇒ x₁ = 3 and y₁ = 9

y-y₁ = m(x-x₁)

⇒ y-9 = 1(x-3)

⇒ y-9 = x-3

⇒ y = x-3+9

⇒ y = x+6

⇒ x-y = -6

Therefore, the line which is parallel to 2x-2y=-4 that passes through the

point (3,9) is x-y = -6.

Hence, x-y = -6 is the required answer.

Learn more in depth about similar problem at brainly.com/question/1884491

#SPJ1

7 0
1 year ago
Other questions:
  • A ball is thrown straight up into the air, 8ft to the right of the house, which is at the origin. For which values A, B, and C w
    6·2 answers
  • Find the product of (x + 5)2
    6·1 answer
  • How to find an equivalent fraction of 36/48 with numerator 9
    15·2 answers
  • Hunter throws a basketball in the air with an initial velocity of 40 feet per second. He throws the basketball from a height of
    8·1 answer
  • What division sentence means the same as the following subtraction sentences? 12-4=8, 8-4=4,4-4=0
    5·1 answer
  • What is the value of the product (3 - 2i) (3 +2i)?<br> O 5<br> 9 + 4;<br> 9 – 4;
    12·1 answer
  • what is the relationship between 5.34 x 10^5 and 5.34 x 10^-2 is it greater or lesser than? for 5.34 x 10^5? will give brainlies
    15·1 answer
  • Please answer correctly !!!!!!! Will mark Brianliest !!!!!!!!!!!
    5·1 answer
  • Anna painted 1/6 of a wall, Eric painted 1/5 of the wall, and Meadow painted 1/4 of the wall. There are now 3,910 square feet le
    5·2 answers
  • I need answer asap please, This is due at the end of tommorow
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!