Question

Question 7

Which equation represents a linear function?
x = 3
y = -3x + 10
y = 3x2 + 1
y=16/x

Answer 1

y = -3x + 10

Explanation:

The general equation of a linear function is y = mx + b.

If we substitute the values m = -3 and b = 10, we get y = -3x + 10

A is wrong. The graph of x = 3, but it is not a function, because there are many values of y that correspond to x = 3.

C is wrong. The equation represents a parabola .

D is wrong. The equation represents a hyperbola.