190k views
2 votes
Find f(-10) f(x)=7x-5​

User Benjam
by
8.7k points

2 Answers

1 vote

Answer:

Rewrite the equation in term of

x

and

y

.

f

(

x

)

=

2

x

2

7

x

+

5

Rewrite the equation in vertex form.

Tap for fewer steps...

Complete the square for

2

x

2

7

x

+

5

.

Tap for more steps...

2

(

x

7

4

)

2

9

8

Set

y

equal to the new right side.

y

=

2

(

x

7

4

)

2

9

8

Use the vertex form,

y

=

a

(

x

h

)

2

+

k

, to determine the values of

a

,

h

, and

k

.

a

=

2

h

=

7

4

k

=

9

8

Find the vertex

(

h

,

k

)

.

(

7

4

,

9

8

)

Explanation:

User Lizmary
by
8.7k points
5 votes

Answer:

f(-10) = -75

Explanation:

F(x) is simply another way of saying y. We are given the x value of -10. We can substitute this in for x and find y.

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

f(-10) = -70 - 5

f(-10) = -75

User Tominator
by
7.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories