Question

What equation defines a line parallel to y= -45x which passes through the point (0, −3).​

Answer 1

Answer:

Standard equation of line is y=mx+c ....... (1)

Compairing with the given line y=−4 we get the slope of line as 0 i.e. m=0

Substituting the points in (1) we get  

7=0×3+c

⟹c=7

Substituting the value of c and m in (1) we get,

y=7

Hence, the equation of line parallel to the line y=−4 is given by y=7.

Answer 2

Answer:

1 Expert Answer

When we write a linear equation in the form y = mx + b, it is very easy to get a mental picture of the line: m represents the slope of the line, and b is the y-intercept. So for your example of y = 2x - 3, the line has a slope of +2 and has a y-intercept of -3.