SOLUTION
Given the question in the image, the following are the solution steps to answer the question.
STEP 1: Write the given function

STEP 2: Plot the given function
STEP 3: choose the correct graph
It can be seen from the plotted graph in step 2 that:

Hence, comparing the x-intercepts, the correct graph is seen in:
Answer:
y =
x - 
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = -
x - 3 ← is in slope- intercept form
with slope m = - 
Parallel lines have equal slopes , then
y = -
x + c ← is the partial equation of line d
to find c substitute (- 2, - 2 ) into the partial equation
- 2 =
+ c ⇒ c = - 2 -
= - 
y = -
x -
← equation of line d
His score is 50
How to:
First test grade:0
Second test grade:50
Third test grade: 100
Add all three and divide by 3