Answer:
y=2
-7x-4
three linear equations
c=-4 ;4a+b=1 ; 9=a-b
Step-by-step explanation:
Simply assume a standard parabola equation y=a
+bx +c
(here a, b, c are three independent variables)
Three coordinates as shown in graph are (0,4), (4,0) ,(-1,5)
Now put these points in the equation of parabola and get three linear equations.
[1] c=-4
[2] 4a+b=1
[3] 9=a-b
Now substitute value of a from equation 2 into 3 in terms of b
a= 
9=
-b
b=-7
a=2
y=2
-7x-4
Answer:
2x + 15 = -23
x = -19
Step-by-step explanation:
2x + 15 = -23
2x+ 15-15 = -23 -15
2x = -38
2/2x = -38/2
x = -19
300 all together but 100 solo
First, 10 goes into 47, 4 times.
4 is your whole number.
10 x 4 = 40
47 - 40 = 7
then put 7/10
Put them together and your answer will be (4 7/10)