3 years ago

A quadratic function has zeros -7 and 9. What are the linear factors of the function?

Mathematics

1 answer:

garik1379 [7]3 years ago

4 0

Answer:

(x+7)(x-9) = 0

Step-by-step explanation:

x + 7 = 0

x = -7

x - 9 = 0

x = 9

You might be interested in

The sum of the angle measures of a polygon with n sides is 1800. find n

Lilit [14]

The summation of the angle measures of a polygon is given by:
180(n - 2).
Thus, we need to find: 1800 = 180(n - 2)
10 = n - 2
n = 12

Therefore, the shape is a dodecagon, and the number of sides it has is 12.

5 0

3 years ago

In the third degree polynomial function f(x) =x^3 + 4x, why are 2i and -2i zeros?

IgorC [24]

Answer:

We just need to evaluate and get f(2i)=0, f(-2i)=0.

Step-by-step explanation:

Since $i^2=-1$ , then $i^3=i^2i=-i$ , and we can apply this when we evaluate $f(x) =x^3 + 4x$ for 2i and -2i.

First we have:

$f(2i) =(2i)^3 + 4(2i)=2^3i^3+8i=8(-i)+8i=0$

Which shows that 2i is a zero of f(x).

Then we have:

$f(-2i) =(-2i)^3 + 4(-2i)=(-2)^3i^3-8i=-8(-i)-8i=8i-8i=0$

Which shows that -2i is a zero of f(x).

4 0

3 years ago

If a function is odd, then which statement is true?

jolli1 [7]

By definition, a function is odd if f(-x) = -f(x) for all x in the domain. The answer is choice C

Side note: a function is even if f(-x) = f(x) for all x in the domain

4 0

3 years ago

Guwani invested some money in a bank at rate of 6% per annum. At simple interest, after 9 years, she got Rs. 8470. How much did

IRINA_888 [86]

Answer:

Rs.5500 is the correct answer .

4 0

3 years ago

What is the estimate of 1374 x 6

timama [110]

Hey it is 1374 x6 8244

7 0

3 years ago