The graph of quadratic function f is shown on the grid. у
-61
51
(-6,4)
х
7-65 -4 -3 -2
2 3 4
(-2,-4)
(-3, -5)
What is the y-intercept of the graph of f?

Given:

The graph of quadratic function f is given.

To find:

The y-intercept of the given graph.

Solution:

The intersection of y-axis and the graph of the function is known as the y-intercept of the function.

From the given graph it is clear that the graph of the function intersect the y-axis at 4. So, the y-intercept of the given graph is

Therefore, the correct option is B.

y=−9/2x+10

step-by-step explanation:

let's solve for y.

0−9x−2y=−20

step 1: add 9x to both sides.

−9x−2y+9x=−20+9x

−2y=9x−20

step 2: divide both sides by -2.

−2y

−2

=

9x−20

−2

y=

−9

2

x+10