Find an equation of the line containing the given pair of points. (-7,0) and (0, 9). What is the equation of the line? y=____.

Question

hero · Answer

Do you know the slope formula to find the slope, m, given two points?

anonymous · Answer

hang on, let me go see..

anonymous · Answer

it doesn't show, this is the question, isn't the (-7, 0) and (0, 9) are the given points? confused!!

anonymous · Answer

it also just says to type answer in a slope-intercept form. ause integers or fractions for any numbers in the expression.

anonymous · Answer

*use

hero · Answer

Okay, to find the slope between two points you use the formula: 

$$m = \frac{y_2 - y_1}{x_2 - x_1}$$ where $$x_1 = -7, x_2 = 0, y_1 = 0,  y_2 = 9$$

anonymous · Answer

y=9?

hero · Answer

Once you find the slope, use the slope intercept formula: 

$$y - y_1 = m(x - x_1)$$

Input the coordinates first given point along with the slope you found using the slope formula into the slope intercept formula. Then transform the formula into the form y = mx+b

hero · Answer

You want to find the slope, m, first

anonymous · Answer

y=$$9/7x+9$$

anonymous · Answer

sorry, I'm confused...not even sure if i got that right, but i come upn with y=9

hero · Answer

$$y = \frac{9x}{7} + 9$$, so your equation is correct. I don't know why you keep saying y = 9

anonymous · Answer

oh ok, so that would be my answer..not the y=9..i don't know why i keep saying that..sorry. just confused on some of these problems..thanks for you help Hero.

hero · Answer

yw