The quadratic function has an x-intercept of (-7,0)
and passes through (-4,-18)
The gradient(m) of its graph is (-18 - 0) ÷ (-4 - -7) = -18/3 = -6
Taking a point (x,y) the equation is;
(y - 0) ÷ (x - -7) = -6
y = -6x - 42
Answer:
27 because 5+22=27.
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2 and 1/4 is 9/4
9/4 - 3/4 = 6/4
6/4 = 1 and 1/2
Sry is would help if i knew the answer
1.
cos ∅=b/h=24/25
:.b=24
h=25
by using Pythagoras law
h²=p²+b²
25²=p²+24²
p²=25²-24²
p=√7²=7
now
sin ∅=P/h=7/25
tan∅=p/b=7/24
2.cos ∅ is your answer
sec∅-sin∅tan∅
1/cos∅-sin²/cos∅
(1-sin²∅)/cos∅
cos²∅/cos∅
cos∅
3.
tan²∅-sec²x
sin²∅/cos²∅-¹/cos²∅
(sin²∅-1)/cos²∅