3 years ago

Explain how a function graph can be used to help verify that a function is factored correctly

Mathematics

1 answer:

Sergeeva-Olga [200]3 years ago

8 0

By factorising a function, you can find the value of x-intercepts by substituting f(x)=0

By plotting a graph, you can check the values of x-intercepts

You might be interested in

5(-1x+5)=10 pls help

Leya [2.2K]

Answer:

-5x+5=10

-5x=10-5

-5x=5

x=-5/5

x=-1

7 0

3 years ago

Read 2 more answers

Jacob and Sarah are saving money to go on a trip. They need at least $2000 in order to go. Jacob mows lawns and Sarah walks dogs

Paladinen [302]

Answer:

$20x+10y\ge 2000$

Step-by-step explanation:

Let x represent the number of lawns Jacob mowed and y represent the number of dogs Sarah walked.

Jacob charges $20 each time he mows a lawn, then he earns $20x for x lawns mowed.

Sarah charges $10 each time she walks a dog, then she earns $10y for y dogs walked.

In total, they will earn $(20x + 10y). They need at least $2000 in order to go on a trip, then

$20x+10y\ge 2000$

Note that $x\ge 0,\ y\ge 0.$

7 0

3 years ago

Solve the system by substitution or elimination

OleMash [197]

X - y = 5,
x = 5 + y
substitute (x = 5 + y) into the first equation,
5 + y + 2y = -1
3y = -6
y = -2,
substitute y = -2 into (x - y = 5),
x + 2 = 5
x = 3

Hence, x = 3, y = -2

4 0

3 years ago

Which function is the same as y=cos(2(x+pi/2))-2

miss Akunina [59]

Y=cos(2x+pi) - 2
y= - cos(2x) - 2
{ Since cos(x+pi) =-cos(x)}

8 0

3 years ago

The graph of a parabola has an axis of symmetry of and an intercept at . It passes through the point . What is the equation repr

Eddi Din [679]

Answer:

The answer is B! All I did was take a screenshot of your question and put on my page.

8 0

3 years ago