How would you define the y-intercept? My reply is the y-intercept is when a line crosses over the y axis without crossing the x axis, x=0

Is my answer right
Please help
15 points

Which ratio is equivalent to 10: 85

In δabc, if the length of side b is 3 centimeters and the measures of ∠b and ∠c are 45° and 60°, respectively, what is the length of side c to two decimal places?

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?