Exam Paper Progress Grade For This Paper
U 1 2 3
40 / 80 Marks
4
5
23%
a) Complete the table of values for y = x2 + 3x
х
-2
-1
0
1
1
2
3
y
4
Il
(3)
YA
y = x
b) Use this graph of y = x2
to estimate the value of
4
13.2
3
Give your answer to 1
decimal place.
-1.8
(2)
2
1-
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O
99+

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3

what level of math? also i don't need to be paid if i can you.

answer: i dont know but if you try hard you will get it right : )

step-by-step explanation:

35%

step-by-step explanation: