Write the equation of a line with a slope of 4 and a y-intercept of -3

a. 4x+y=-3
b. 4x-y=-3
c. y=-3x+4
d. y=4x-3

The equation of a line is in format of y=mx+b

The slope of a line contains the coefficient x, therefore a slope of 4 is 4x. Remember to always add the x behind there 4 when it says slope.
The y intercept is just a constant (a number), so in this case the number is -3.
Now that we have both the slop and the y intercept, we can set up the equation.

y=4x-3.

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