What is the y-intercept of the equation 4x 5y = 20?
a. (0, 4)
b. (0, 5)
c. (4, 0)
d. (5, 0)

 The correct option is (a). (0, 4).

Step-by-step explanation:  We are given to find the y-intercept of the following linear equation:

We know that the y-intercept of an equation will be a point where the value of the x-coordinate is zero.

Substituting x = 0 in equation (i), we have

Therefore, the y-intercept of the given equation is (0, 4).

Thus, option (a) is correct.

the answer is a. q=6,r=6√2

step-by-step explanation:

h is the x-coordinate of the vertex

step-by-step explanation:

we have

in this function

the point represent the vertex of the function

so

h is the x-coordinate of the vertex

k is the y-coordinate of the vertex