Plot the x-intercept of the function f(x) = (x + 4).
Click or tap the graph to plot a point.

The x-intercept is (-4,0)

Step-by-step explanation:

When you have an x-intercept, it means you have ( x , 0 ). The y-coordinate will always be 0.

Here you can replace f(x)  = y.

y = x+4

Plug in 0 for y to get 0 = x+4

Subtract 4 on both sides to single out the x.

You get x= -4

Your x-intercept would be (-4,0)

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is:

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two