Question

Fin k if y =kx2, and y=25 when x =5​

Answer 1

Answer:

$k = 1$

Step-by-step explanation:

Given

$y = kx^2$

Required

Find k, when: $y=25;x=5$

We have:

$y = kx^2$

Substitute 25 for y and 5 for x

$25 = k * 5^2$

$25 = k * 25$

Divide both sides by 25

$\frac{25}{25} = \frac{k * 25}{25}$

$\frac{25}{25} = k$

$1 = k$

$k = 1$

Hence; the value of k is 1