Answer:
y = -2x + 7.
Step-by-step explanation:
The slope is (5-7)/1-0 = -2 ,
Checking with other values: slope = (- 3 - 7)/ (5-0) = -10/6 = -2.
So the function is -2x + c where c is some constant.
Plugging in the point (0, 7):
7 = -2(0) + c
c = 7.
So the answer is y = -2x + 7.
Answer:
y = - 2x + 7
Step-by-step explanation:
Note the differences in the corresponding values of y are constant
5 - 7 = 3 - 5 = 1 - 3 = - 1 - 1 = - 3 - )- 1) = - 2
This constant is the multiplier of the x values, thus
y = - 2x ± c where c is a constant
To find c substitute values of x into the equation
x = 0 → y = 0 ← require to add 7 to obtain corresponding value of y
x = 1 → y = - 2 ← require to add 7 to obtain corresponding value of y
Thus algebraic description is
y = - 2x + 7
