Answer:
all real numbers
Step-by-step explanation:
The domain is the possible input values, or in this case, the values that x can be
For this graph, x can be any value, so x is all real numbers, the domain is all real numbers
Is that minus 110 or negative 110?
Parallel lines have the same gradient.
The equations are either in the form y = mx+b (m is the gradient)
or in general form ax + by + c = 0 (-a/b)
The gradient of y = 2x - 4 is 2.
The answer is B (gradient = -4/-2 = 2)
Answer:
21.
Step-by-step explanation:
f(x) = 2x^2 - 3x + 7.
When x = -2,
f(-2) = 2(-2)^2 - 3(-2) + 7
= 2(4) - (-6) + 7
= 8 + 6 + 7
= 21.
