Question

Help me answer this question please with full working​

Answer 1

A y=1/2x(powerof)2+5

B 17.5

C x=√42 or x=−√42

Explanation:

Answer 2

a. y = x^2 + 10

b. when x=5, y = 35

c. when y = 26, x = +4 or -4

Explanation:

Given

y = k (x^2/2 + 5), and

(2,14) is on the curve.

Solution:

Substitute x=2 and y=14 in the above equation

14 = k (2^2/2 + 5)

14 = k (2+5)

14 = 7k

k = 14/7 = 2

a. equation connecting x and y is

y = 2 (x^2/2 + 5), or

y = x^2 + 10

b. when x=5

y = 5^2 + 10 = 25 + 10 = 35

c. when y = 26

26 = x^2 + 10

x^2 = 26-10 = 16

x= sqrt(16) = +4 or -4