3 years ago

Let f(x) = 2x^2 - 4x + 1 Find the values of f(1), f(0), f(2), f(-2), f(a)

Mathematics

1 answer:

Nataly [62]3 years ago

5 0

Answers:

f(1) = -1

f(0) = 1

f(2) = 1

f(-2) = 17

You might be interested in

Curtis bought a skateboard which he later sold at a 30% loss for £14. How much did Curtis pay for

Norma-Jean [14]

Answer:

18 pounds if I'm correct

3 0

3 years ago

What is the value of h when the function is converted to vertex form?

elena-s [515]

Answer: h=7

Step-by-step explanation:

By definition the function in vertex form is:

$f(x)=a(x-h)^{2}+k$

Where (h,k) is the vertex of the parabola.

You must group the terms that contain the same variable in the function:

$f(x)=(x^{2}-14x)+29$

Complete the square as following:

$f(x)=(x^{2}-14x+49)+29-49$

Now you must rewrite it as following:

$f(x)=(x-7)^{2}-20$

Then:

h=7

4 0

3 years ago

Read 2 more answers

Describe and correct the error in evaluating the expression.<br> 9 + 2 x 3 = 11 x 3 = 33

Vinil7 [7]

Answer:

so basically is right how you write but multiplication goes first

3 0

3 years ago

Given the check digit is 3, find the missing X for the master card number 5164 2X13 2705 0183

Gekata [30.6K]

Answer:

Step-by-step explanation:

So there's 3 1's, 2 2's, 2 3's, 1 4, 2 5's, a 6, a 7, an 8, 2 0's, and no 9's.

5 0

3 years ago

Read 2 more answers

What is the average rate of change of the function over the interval x = 0 to x = 5?

AURORKA [14]

$\bf slope = m = \cfrac{rise}{run} \implies \cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby \begin{array}{llll} average~rate\\ of~change \end{array}\\\\[-0.35em] \rule{34em}{0.25pt}\\\\ f(x)= 2x^2-1\qquad \begin{cases} x_1=0\\ x_2=5 \end{cases}\implies \cfrac{f(5)-f(0)}{5-0} \\\\\\ \cfrac{[2(5)^2-1]~~-~~[2(0)^2-1]}{5}\implies \cfrac{50-(-1)}{5}\implies \cfrac{50+1}{5}\implies \cfrac{51}{5}\implies 10\frac{1}{5}$

6 0

3 years ago