please help me answer this question what does the equation look like with a slope of 4 ad a y-intercept of 3

The easiest way to solve this problem is to use slope-intercept form.

Slope-intercept form is: y=mx+b

m is the slope.

b is the y-intercept.

From your question,

m=4

b=3

Substituting into y=mx+b gives

y=4x+3

Hope that helps!