Question

5. In the following equation, identify the x-intercepts in the graph y = 3x2 + 19x – 40.
I really need help with this question

Answer 1

For x intercept put y=0 and solve for x

Answer 2

For y intercept put x=0 and solve for y

Answer 3

to find the x-intercepts, well, let's look at some graph

keep in mind that, x-intercept is where the x-axis gets "intercepted" by the graph, or where the graph touches the x-axis

now, what value does "y" have at that point?

Answer 4

@jdoe0001 I'm not quite sure

Answer 5

say for example, is a coordinate value
the coordinate at that point, say x = 4 so the coordinate will be \(\large (4\quad, \quad \square?) \)

Answer 6

(4, 4)?

Answer 7

y = 4 is way up there in the y-axis, so is not 4