Question

What are the x-intercept(s) of the graph of: y − x2 = −11x + 24?

(−3, 0) and (8, 0)

(3, 0) and (−8, 0)

(−3, 0) and (−8, 0)

(3, 0) and (8, 0)

Answer 1

a brief explanation would b nice too :)

Answer 2

the x intercepts are the values of x when y = 0
so you need to solve the equation
x^2 - 11x + 24 = 0

Answer 3

solve for x?

Answer 4

can you solve this?

Answer 5

i just dont understand what u want me to solve? x?

Answer 6

yes - solve for x - have you done this type of problem before?

Answer 7

yes - solve for x - have you done this type of problem before?

Answer 8

no thats y im confused

Answer 9

ok - all another way to do this problem is to plug in the given coordinates and see which ones fit

Answer 10

This the sort of problem you'd have to graph, so looking for the point or the point slop-intercept is your objective. Start with each coordinate and plug them into the equation to see which makes the most sense, that'll give you your answer...tell me if that works for you :D lol

Answer 11

@brookester6 can u gimme an example of how to plug the coordinates in?

Answer 12

e.g. try (-3,0 ) and (8 , 0 ) that is when x = -3 or x=8 y = 0

(-3)^2 - 11(-3) + 24 = 9 + 33 + 24 = 66 this should be 0 doesn't fit
so we needn't try x = 8

Answer 13

then we try (3,0) and (-8,0)? right

Answer 14

quick question where did u get the =9+33+24=66 from?

Answer 15

*@cwrw238 quick

Answer 16

For example...y − x2 = −11x + 24?...and the coordinates you want to plug in are (3,0) and (-8,0) so instead of writing an equation, you would use this...m=x-x2/y-y1

Answer 17

so then use those coordinates and plug them in

Answer 18

thank u :)

Answer 19

np :)