Question #ac356

Question

Question #ac356

1 Answer

Impact of this question

2639 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-10-15T04:40:09

Average rate of change $= 7$ $=7$
$y = 7 x - 8$ $y=7x-8$

Explanation:

For the function y = f(x) between x = a, and x = b, the
mathbitsnotebook.com

$f (x) = 2 x^{2} - 3 x$ $f(x)=2x^2-3x$
$f (a) = 2 - 3 = - 1, w h e n a a a = 1$ $f(a)=2-3=-1, when color(white)(aa)a=1$

$f (b) = 32 - 12 = 20, w h e n a a b = 4$ $f(b)=32-12=20, when color(white)(aa)b=4$

$a = 1, f (a) = - 1; b = 4, f (b) = 20$ $a=1, f(a)=-1; b=4, f(b)=20$

Average rate of change $= \frac{f (b) - f (a)}{b - a} = \frac{20 - (- 1)}{4 - 1}$ $=(f(b)-f(a))/(b-a)= (20-(-1))/(4-1)$
$= \frac{21}{3} = 7$ $=21/3=7$

$y = m x + c$ $y=mx+c$ ; to find c,
$- 1 = (7 \cdot 1) + c$ $-1=(7*1)+c$
$c = - 8$ $c=-8$

The function is
$y = 7 x - 8$ $y=7x-8$

Science

Math

Humanities

... and beyond

Question #ac356

1 Answer

Explanation:

Related questions

Impact of this question