ANSWER:
m = -3/4
b = -3

STEP-BY-STEP EXPLANATION:
We have that the equation in its slope-intercept form is the following:

We calculate the slope as follows:

To calculate the slope we use the intercepts that are (-4, 0) and (0, -3), we replace:

Now, the value of b would be -3, since the y-intercept is (0,-3), therefore, the equation would be:
Answer: negative -3.25
Step-by-step explanation: Add the negatives which is -5.25 then the positives which is positive 2.00
Then you need to add 2 to the negative number and you’ll get -3.25
Sin 49 =cos x
sin α=cos(90-α)
sin(49)= cos (90-49)
sin 49 =cos 41
x=41